Any photographer, be they professional or photo-enthusiast, will tell you that taking care of your equipment is one of the major concerns of the hobby. After all, it just wouldn't do to show up and be in the position to take a great photo, and discover that your camera's broken.
The delicate nature of cameras is something that has only been magnified in the move to digital. Where earlier light-proofing the film chamber was the biggest deal, now it's keeping all the little electronics and tiny moving parts dust free and safe. Even the most rugged of SLRs is not something you want to toss around like a stuffed toy.
