I recently tried a power trail in Alabama. It was done by a 16 year old kid who openly stated that he didn't have "time or money" to conduct basic maintenance. It was a trail of well over 100 caches, all micros. I only found about ten or so of the caches before I got tired of driving two minutes, hopping out of the car, hunting the cache, signing the log (if there was one, and if it was intact), then repeating the process over and over again. The caches were in generally poor shape, and I usually don't mind adding a fresh log and new ziplock baggie here and there, but that was a bit ridiculous. In my opinion, if you're going to tackle the task of making a power trail, or any type of cache for that matter, you should be able to conduct regular, routine maintenance on the cache(s). From what I've come to learn, a cache that sees regular finds should be checked on at least a couple times a month, once a week if it's being found quite regularly. If it's a cache that doesn't get much traffic, once a month is a generally acceptable timeframe. Of course, there are those times where you get a string of DNFs. Then you should take your happy behind out there and find out what the problem is. OK, rant complete. Sorry!