I know that I've picked up books despite their blurbs (a certain sparklepire author has blurbed a LOT of YA books) and liked them regardless. I don't tend to go based on a blurb, although I'm sure it does persuade me on an unconscious level.

I am overwhelming swayed by cover art and titles, which I realize is the point of cover art, but damn I'm a sucker for pretty cover. BTW, the DA cover is gorgeous and currently my computer desktop.