I am not a great fan of tattoo's, but so long as they are not offensive, i don't see why a customer would be put off.
On another note, one thing that strikes me is that these days it is just a fashion statement, that people get them to 'fit in' with the latest trend, which, as a reason for getting one, i think is pretty sad. If it is your own design, or it is something that has real personal significance to yourself, fair enough.
The other thing is age, my brother got a couple of tattoo's when he was in his 20's, and when 1st done they certainly looked striking, but even after 5 years they were fading noticeably, and as for now, when he is 44, they look rubbish. I see those guys (and gals) with tattoo's all over their face, and i think, what is that going to look like when you are 60 and picking up your grandkids from school?.