One more thing I forgot to add - There's a reason why people find them addictive as well. I just got my first and already want more....aside from the whole looks thing, it feels frigging amazing getting it done and I know a lot of people love the sensation of it as well. Worth marking your body up for the rest of your life for an interesting sensation? No, not really, but hey if good art comes out of it as well, win win for people who like tattoos.
And just for the fun of it -