GeoCaching? Is It Worth It?

I've vaguely heard of Geocaching, but have never really looked into it. Essentially, it involves hiding some sort of package, then having others seek your hidden package. It typically involves the use of GPS, with several clues, hints, coordinates, etc to find the treasure. It's not important treasure, but moreso just the challenge. It might just be the experience that folks are looking for, etc, but mainly just a hobby to kill time.

So, after doing a little research, it does sound like something that might be fun to do, but I do question the end result. Really, is it worth it to go traipsing around the countryside (or cityscape) just for the privilege of saying, "I found your hidden treasure." I suppose it might be, but again, I think the end goal is to just get people outdoors, to get them moving, and if they can do it with friends or family, they can all share the experience. But, it also seems that many (vast majority) of the finds are meaningless, trivial experiences, just to increase your tallies. It also seems that I'm often quite busy, with work, my stupid rotating schedule, and often severe weather, that I'm hard pressed for time anyhow. It certainly could be a time sink if you let it.

So, is this something I might be interested in? Perhaps. But, I'd have to buy a new handheld GPS. I've been wanting to get one for my car (that was one of the concessions that I made when I bought it, to avoid buying the built-in-dash GPS). I believe if I do this right, I could get a GPS that could be used for both the car and for geocaching, but in the end, is it really worth it?