Lochlan you have the most awesome topics. Well I'll add my 2 cents on this.
For me I feel that a tattoo can be many things.
First off, sure a tattoo can have a meaning even if you don't realize that it does. Do you think that maybe for some unforeseen reason you were attracted to an image with out knowing its meanings only to find out later that the image suits your personality perfectly, or even some of your beliefs. Some tattoos are carefully planned out with piles of research on their meanings before the ideas and images start flowing.
Secondly, a tattoo could be just an image thats it, nothing else. It could be just to look cool or to accentuate the body.
For me I have a fine balance of tattoos. Some are ones that I really like and don't have meanings for. Some of my tattoos I have wondered about why I picked certain images only to look into their meanings and find out more about my self. LOL. :) Given the chance, Sure I would get tattooed by a great artists, but not necessarily a specific shop. Here is an example where it could have happened if I was not already getting tattooed. I was at the NIX convention a few years back and I was getting my koi tattoo. Steve Peace was sitting right beside me bored because his client was a no show. Well that would have been a great opportunity to fill in for his no show appointment and get a great pin-up tattoo.