Monoprice offers its Monoprice Mechanical Gaming Keyboard, model no. 9433, for $50.28 with free shipping. That's a buck under our June mention and the best price we've seen this year. (It's a current price low by $14.) It features Cherry MX Blue switches, N-key rollover support, and 2mm keyswitch actuation distance.

Update: The price has dropped to $48.50.