Oh please, I need one verily badly.
Mainly because I am jealous of my PS2 remote having one, and being able to waste a 30 round clip of bullets in a few moments.
I mainly want one for helping me beat some more Motorstorm Races, and some CoD4 shooting. Also for HL2, TF2, and Fallout 3 when I get them.
*Not sure if this belongs in games or not*