I honestly hate that tramp stamps are associated with silly girls of low moral and intellectual capacity. I think that they are extremely good looking and do a great job emphasizing the female form (which, you know, is why slutty girls get them). If you don't mind people thinking that you're an easy lay (and they will), then go for it, I think they look great.
That being said, I cannot stand when people have generic tattoos. It's actually very sad to me to see so many butterflies, dolphins and lengths of barbed wire (or ivy) done exactly the same way in exactly the same spots of so many people. It's the body equivalent to a reproduction of a Thomas Kincaid painting. This should be art, so please get something exceptional and something personal.
Of course, saying that, I still have no tattoos, though I do have something in mind, perhaps when I finish graduate school.
~Jason