The going rate seems to be $78-90 (JB / TGG), and Amazon is showing a 46% discount off RRP of $89.95. The current price is (49c cheaper than last time posted).
I wanted another K400 but can't justify the price for something that won't work with the slightest bit of moisture on the trackpad. This seemed like a good compromise between one of those and a $10 eBay version.
The N9Z can also be had for the same price inc. delivery @ CentreCom.
You just missed the K600 deal from last week….