Can't believe I haven't posted mine yet. Well, I have 4 so far. #5 will be coming on Apr. 9th (it will be the Serbian Coat of Arms, in tribute to my mom).
For me as someone else stated, my ink represent checkpoints in my life. Things that are important to me, and significant times. I think that as long as the ink has some sort of meaning to you, then go for it, but you do have to think it through before you do it. They aren't cheap, and it's even more expensive to get them removed. FInd a quality artist...key work ARTIST. You see a lot more people who have some sort of art background doing tattoos, and I feel that it has really improved the quality of the pieces I see people getting.
That being said, here are mine...
My backpiece.
Gecko on my calf.
My 2 on my arm, that I'm planning on turning into a half sleeve (at least).