depends where you go... several of the stores i have seen both have dresses (prom stuff) and gowns all in one store...
never been in davids bridal i just assummed they would have both gowns and maids dresses (which some friends have used for dresses)
Suzie1 if you are looking for a deal on a dress yourself i know there was a reputable daily deal site advertising for $70 a wedding dress... but as its only a daily deal its gone...
shopping north west PA and south west ny