marioxdcThey were exclusive, pretty sure Corsair's deal has ran out and only lasted a year.
"Corsair’s great success is heavily attributed to their exclusive deals with Cherry, the most reputable manufacturer of mechanical key switches. For example, they had an exclusive for Cherry MX RGB switches for a year, which made the K70 RGB one of the most popular top-tier gaming keyboards last year. "
Via: http://www.anandtech.com/show/10301/corsair-k70-rgb-rapidfire-review