I've been after a k95 Platinum for a long time but the price was extremely prohibitive ($320+).
JB Hifi currently have a 20% off sale on certain gaming hardware and they currently have the Corsair K95 Platinum included in this sale dropping the price to $263.20.
Most stores with have one or maybe two of these keyboards (Due to the normal price) and seem to carry only the Cherry MX Brown or MX Speed version.
This price is the lowest I've ever seen it for this keyboard in Australia.
specs here: http://www.corsair.com/en-us/k95-rgb-platinum-mechanical-gam…
MX Speeds are similar to MX Reds but they have a shorter 1.2mm actuation distance and they bottom out earlier. What this means is if you have a problem accidentally hitting keys with MX Reds then it's probably going to be worse and they may be noiser for typing.
I've just settled on a K65 RGB Rapidfire with MX Speeds. The design of these keyboards is really good: switches attached to a metal sheet which means you can pull the keys off to clean it properly, no circuitry exposed as with many kedyboards. Also metal means it's very solid feeling.
The claimed "faster" nature of MX Speeds in terms of gaming performance can be ignored but I'm using MX Speeds and MX Reds on a number pad at the same time at the moment and I think I prefer MX Speeds. They're very nice keys (and Corsair exclusive at the moment).