@M1ddle - Don't be afraid to ask if any tattoo studio you visit opens a new pack of needles for every customer! You should definitely make sure they are at least thoroughly sanitizing needles for each tattoo. Low prices might be appealing, but the risk isn't worth the money you might save at a tattoo parlor that doesn't use fresh needles every time.
Do your research and ask questions before you commit to a tattoo. The same goes for piercings. It's worth spending the extra money if you know that you're safe from disease.