can't remember where I read it, but there is a new ink getting ready to be on the market sometime this year. It's biodegradable or something. The skin doesn't take it, so it wont stain or absorb into it. It'll be just like a normal tattoo, except with one lazer treatment, the tattoo will be completely be gone.
So just note for anyone who is wanting a tattoo and is iffy about it, may wanna stick it out til this new ink hits the market.