Three of my Japanese maples planted in the ground are nearing 10 feet or more in height. As far as I'm concerned, they can grow as big as they like but I'm wondering if there are other things to consider and that maybe I ought to control their growth for other reasons. For example, water is scarce here in the summer and I assume, the larger the tree, the more water it will need. Also, I have to think that a smaller, more compact tree would be less vulnerable to wind and snow damage. What about aesthetics? After this year, I won't be able to get to the high branches to prune them even if I wanted to. I'd really appreciate any advice you can give because I believe now is the time to prune.