I tried a friend's Corsair K90 and I hated the combination of MX Reds and membrane keys. I wouldn't pay $90 for one of those....
This on the other hand, I absolutely love!
75% keyboard size, KBTalking Race II model, MX Brown switches, white keycaps/keyboard, and green LED backlighting
I'll probably add some O-rings to the keys to dampen the sound on top of the already relatively quiet MX Browns.