“Try your local Games Workshop store or FLGS.”
Given that most GW stores haven't got much stock of anything that isn't mainstream 40K/AoS (unless it hasn't moved by some miracle because no-one is interested in said product), and FLGS get shafted on stock levels when trying to order anything in, even when they telegraph their pre-order requirements to GW, I'd expect this handwaving is with the full knowledge that if the
direct source doesn't have any stock, neither will anywhere else without serious effort on the part of the consumer to hunt it down.
@Stoof's observation misses something; GW is a behemoth that makes "enough" money/profit doing things the way they do. GW have already made the money they were bothered to make with this (and any) release to satisfy shareholders, and they need to move on to the next FOMO release, in limited quantities to "help" justify high prices while keeping production costs down (if I make less of a thing, I've spent less on materials, tooling and labour to make the stock of that thing that I'm going to sell), that they have told the shareholders they're going to make as the "Next Big Thing".
I keep going on about Anvil Industry, I know. They're a (by comparison) boutique miniature company, I assume that when they make stock they make a couple of sprues at a time at most (maybe even casting up parts when ordered), and understand their stock levels to reliably restock when they get low on a certain item, and they put items that are taking up stock and haven't sold in a while into bits bags (as well as second-rate casts etc) to shift them as needed. When I've ordered some Anvil bits, they will have made anything they didn't actually have in stock because they have the moulds, they have the machines to make them, and they've costed their products so they'll get a return, and probably most importantly
I have given them money in exchange for their goods that helps keep their lights on. "Shut up and take their money" in action.
GW, in contrast, have their shareholders and their invested money floating around. They have a global presence with multiple stores of their own across the world (except where they don't, and rely on FLGS to stock their products). If a store doesn't turn a profit, GW can just close it/stop supplying product, "amputating" it to save the rest of the GW organism. GW have manipulated the market to entrap consumers and fool them into believing there is only GW, no alternatives, as well as pushing for tournaments that you can only turn up to with "official" GW minis.
GW have manufactured a situation where they're always right, not the customer. For every person with a failed/unfulfilled order, there's more people happily buying whatever they can get their hands on without stopping to actually consider what is happening within their hobby.
GW: "We're going to introduce Primaris marines, they're better in every way than normal marines, and you're going to buy them."
Customer: "Primaris don't sit very well in the lore of 40K, they don't sound very exciting as an addition, I don't like the designs (jump-pack heavy weapon wielding space marines? Nerf gun missile launcher marines?) and I just don't see the point."
GW: "...We're making all the Primaris marines better in the rules, and making all the firstborn worse."
Customer: "Still don't like or need Primaris, narratively or in terms of playing them; nerfing firstborn space marines will likely make them more fun to play against other factions, or drive uptake of other factions where people still don't want to play Primaris, which helps with diversity in the hobby space."
GW: "...We're discontinuing huge swathes firstborn minis, despite the fact we still sell them in enough quantities to stock them in GW stores as "safe bet" stock, long after we introduced their supposed superior replacements. Most discontinued products are ones we've nerfed into the ground and/or deliberately don't stock in stores, or keep decent stocks of, to dissuade people from buying them."
Customer: "Well, I've got some choices. Buy the Primaris that I don't like, learn 3D printing or otherwise obtain third party minis and use those, or find the scalpers and recasters on the internet who will be adding a few zeros to their prices. And I really don't like Primaris..."
Whale: "Whats the problem, can't you just buy the Primaris marines, like I have done to flaunt my wealth at my local hobby scene?"
Simp: "Why don't you just buy the Primaris? You're what's wrong with the hobby, GW can do no wrong!"
Clueless: "How are you going to play the Warhammer otherwise? As we all know, there is only the Warhammer, nothing else... I'll just have to buy Primaris, myself."
Personally, I tried to buy an Attack Bike, some Assault Marines, and a Land Speeder Storm when the hammer fell on the firstborn - the Attack Bike is something I'd always would have liked to have, but was expensive for me, and I had no legitimate reason to buy one before. Couldn't get them from GW, out of stock when I checked. Put an order in at Element Games who couldn't honour the order because GW weren't bothered to have the custom and make one last production run for the stuff they were getting rid of. I could have still got the Attack Bike, but decided to just cancel the order - doubtless someone else will have got that attack bike, and good on them since they'll have needed it more than me.
I then put in ~£50 at Anvil Industry as I'd made some mistakes putting some of their Space Western minis together, got the bits in the post within a few days. I'm more inclined to do business with Anvil, especially as I need a Lawman/Outlaw mini for TribeMeet.
Normally, you should look at a place like Anvil Industry and think "they're expensive, I'll pass on them unless I'm doing a big spend project or I need certain bits to kitbash something", and look at GW and go "I'm confident I can get anything they sell at any point and their prices are reasonable". It's currently very hard to determine which should be which; if anything, they're definitely currently the other way around (my previous post about 6 minis from Anvil, in resin, being cheaper than 6 plastic minis from GW, being a case in point).
In related Sumpage, Mantic are doing a limited-run advent calendar game (an advent calendar that, behind every window, is a miniature/piece of scenery/token/dice, and when you've finished you use the advent calendar box as the board to play the game). There's no licencing issues like with The Walking Dead (which they might end up getting back given some of the licencing they've done recently with a TWD dice game), they're just producing a limited run (within the context of "it's an advent calendar for Christmas, they'd not sell it all year 'round", I'd understand, but it isn't worded like that).
Given GW's "limited run" approach to, well, everything these days, I'm wondering if I'll need to start worrying about Mantic pulling FOMO moves too now.