First i should say:
1. I'm not against depletion, i like the possibility to have it since it's a addon to the gameplay, could have ingame social implications etc.
2. I'm generaly against features removal, so i think depletion should stay and be available. Although by my own choice i don't do it.
3. I all in favor of more features so.. i'm abusing this thread to bump this old sugestion:
http://magicduel.invisionzone.com/topic/13758-add-damage-by-usage-to-every-tool/
See it as a addon to the game, bringing some new gameplay possibilities, new resource collection strategies, not as a idea to "prevent" anything.
The concept is based in real life, as every action have a percentage of possibility to go wrong. In MD (except in some rare things) every action have a garanted outcome.. i personaly dislike that 100% accuracy of things.