It's probably a price issue... You need a laptop/expensive graphics card, you needed it back them when you started on a "waitlist" (official or your own), and

It's probably a price issue... You need a laptop/expensive graphics card, you needed it back them when you started on a "waitlist" (official or your own), and after them becoming available, you buy one laptop/card, and you're done. With raspberrypis, everyone doing anything with them outside of purely first time hobbyists, will order 5, 10, 50, however much they can get, because the waiting is killing the business. When rpi zero w 2 came out, it was hard to get, but the moment I could get one, I bought 3 pieces, even though i needed only one at the moment, but I knew, if I needed more, I wouldn't be able to get them for months again.