Why do you want money again?
The claim that it's easier to get Custom Key Caps for these is an absolute joke. There is very little available in the market for Alps style keycaps vs Cherry MX which is ubiquitous. Injection molding shops would have to have tooling available to make these keycaps. Most of them don't. That's what makes getting custom keys easy or hard, not the mounting shape. I don't even think you can get them in PBT anymore unless you pop them off an SGI Granite keyboard or older Apple keyboards (or with a Japanese layout).
Cherry MX Reds are also not out of wide circulation at all. Reds and Browns are their most popular switch right now! These comparisons are totally disingenuous.
Not to mention Matias switches are super wobbly...Have fun doing those sticker mods.