So It looks like everyone is in agreement that it is possible to maintain large numbers of caches, however, what about those cachers that don't maintain their caches, have several in "Needs Maintenance" mode and are still out there placing more caches? We have a few cachers in our area that are like this. They keep placing trashy micros, just for the sake of placing them. They don't maintain them yet are still placing more caches.
These high number trash cachers are also stealing good caching places from other cachers. How can we expect to get new cachers into this fun if when they decide to place a cache, they can't find a place to do it?
My hats off to those big time placers who are doing a great job of maintenance, but what do we do about those that don't? Maybe GC.com should put a limit on the numer of placements, not just for maintenance issues, but also for the sake of not using up all the good hiding spots.