Not so much. $100 is really entry-level for a gamer card.

Ideally you want to really target the $125-175 range for mainstream cards. Those cards will be considerably more powerful than the sub-$100 range.
Evga 9800 GT $99 post rebate
Evga GTS 250 $135
Evga GTX 260, Core 216 $160
XFX 5750 $140 - DX11 compliant (if I recall it's power is a touch lower than the less expensive GTS 250)
XFX 5750 $175 - DX11 compliant (bounces around the performance of the GTX 260, typically a hair lower)