I checked on one of my geocaches this week. It was reported missing, and today's visit confirmed it. When owning a geocache, you get a lot of joy in having reports of "Found it! TFTC!" You don't enjoy reports of "It's missing" nearly as much.
Cache maintenance is one thing that keeps me from placing many more caches. I feel that caches ought to bring traffic as long as they can. I would not have placed the cache in a place I perceive as invaluable. How do you deal with maintenance?