Razer do sell a lot of boards, despite their poor quality control. I think Kaihua (Kailh) will make more than enough to recoup development costs. Especially if these boards get good reviews.
Personally, I'd still steer clear of them for a daily use board, despite the price, for 2 reasons: 1. Razer... 2. Kailh... BOTH have poor reputations for durability and quality control.
May be worth buying a board to check out the switch feel, though. Sounds like they're somewhere between a Brown and Clear in terms of spring, but with a small tactile bump, like Browns. I don't really see the 0.1mm higher actuation and "narrower" actuation and release band being very noticeable, but I'll reserve judgement pending more reports.
Apparently Kailh stems break easily. Be careful when removing keycaps...