Probably because it's the crappy new G15 that only has 6 G keys.
I had that one and there was nothing crappy about it. I never used more than the 18 keys anyway (all you do is hit the M buttons same as the rest of the G series) Honestly in most games I wasn't using more than 5 G keys. The price is a steal, and I would think after owning one for a while people would become like me and feel lost when using keyboards without a monitor. There's so many awesome things the screens do.
Having said all that, OP yer gonna get defaulted down as you could have just bumped Wints thread, had you tried to do so you would see that this sale has been happening every other week or so.
FFXI:Sylph - Perrin 75 Hume THF; Retired (At least from my use any way)
EVE Online:ScraperX; Retired
WAR:IronClaw- Peryn SW;SkullThrone- Grymloc BO; Retired