But...covers really do matter. I've been drawn in by covers myself. The first Laura Kinsale I ever read (years ago) was Seize the Fire. I didn't have a clue who Laura Kinsale was, but I loved that stepback cover, so I bought the book. Fortunately, I also loved the book and became an instant fan.
Jennifer Crusie's Maybe This Time is another example of a cover that sucked me in (although by that time I was already a Jennifer Crusie fan, I would have bought the book just for the cover, I think. The floating coffee cup and the heart made me want to know more).
Or how about Rick Riorda's The Lost Hero cover? How awesome is that?
As for my own covers, it's hard to choose a favorite. These past few years I've really been blessed with gorgeous artwork on my books. This cover was nominated for an award (don't ask me what contest. I received an email telling me that it was a finalist, but since those types of contests require votes and they always feel like popularity contests with the contestants begging people to vote for their book, something I'm not even remotely comfortable doing, I just took it as a nice moment and moved on. I think it's a very pretty cover, but I'm not sure it's better than others I've been lucky enough to have.
And I'm totally not going to mention the few books where I've worried that the cover didn't quite reflect the story. I have, as I said, been incredibly lucky.
So...can you think of any books where the cover just reached out and begged you to pick up the book?