Funny, a buddy of mine got his first (and only) tattoo maybe 15 years ago from Michelle Myles here in the city.. Needed a little love, so when he was back in NY he got in touch and got her to slick it up, looks super nice again!
(Also, as to the OP, I kiiinda feel like it depends on the touch up. Is it a two second blast of black? Or a half hours worth of tightening everything up on a new tattoo?)