I've never quite grokked how gamers specifically choose a piece of equipment that is near identical to that chosen by typists - I'd have expected that their needs would vary enough that some redesign or fine tuning would benefit them - and that devices such as Logitech's Nostromo would have a bigger slice of the market.
Edit: I know even less: Belkin made the Nostromo gaming keypad thing, Logitech's equivalent was called the G13 and had an LCD display
Well, that shows what I know! (Not a lot, evidently!)