We've all seen some old guy in his 60's,
50 lbs heaver than when he got the tattoo, his skin is wrinkled, and the tattoo is faded and just looks more like a skin disease than anything else.

I have also noticed that tattoos are becoming more complex, busy. They have become so complicated that when I look at one, I can't tell what I'm looking at. Looks like a bunch of different, random colored paint.