I've just begun this hobby, but I have friends around here that are totally hooked. One of my buddies wife threatened to leave him if he didn't stop going so much. I live in an area thats surrounded by various nature trails, state parks and so on, so its easy to get addicted in a place like this.
There's hundreds of caches located in the scenic Pike County, Kentucky. Check out www.tourpikecounty.com.