I would hope this doesn't offend anyone. I think it's a very reasonable, personal decision for you to make.

For me, I got my Tattoo to represent a specific moment in my life that I didn't want to forget. For me, it's a memory, which is all the more important because I have a pretty poor long term memory. My next Tattoo will be something drawn by my niece, as I'm currently living with my brother and his family.

Still, my choice is to keep them around my upper torso where they can be hidden. I don't want the hassle of a face Tattoo myself.