Saw these up on newegg for 74.99, but with an additional 20 rebate, it can get down to 54.99. Quick snippet from the rebate form terms an conditions, though this may be common knowledge.
"Limit ONE (1) Cooler Master rebate per product for this offer per customer, person, receipt, family, household, or
address."
Also the $20 rebate card could take up to 12 weeks to be processed and delivered.
$54.99 for a full 104 key MX keyboard though... How much would 104 Brown switches cost alone? Hah. Hopefully someone takes advantage of this!