This is a cool thing. Framework make a cool laptop that I'd have bought if it was available in my area while I was shopping for a new laptop.

The SSD in the Steam Deck is a bit of an uncommon form factor, so getting high capacity drives from a reputable seller is a good thing in my book. The price is hefty, but this isn't a large market. Honestly, the price just makes it more believable to me. If you see an SSD from a company you don't know with a capacity that sounds too good to be true for the money then it's usually a fake.