my dad is really big into this. he drags my mom and nephew around and they seem to enjoy it. They are up to 60+ caches found. My wife and I helped out on a couple when we visited for Thanksgiving. They live in Arizona so they have a lot of variety in where caches and how/where they are hidden.
I looked up some in my neighborhood in NY. They are all micro-caches for the most part and very prone to being "muggled".