I travel a few times a year to go diving, spend time backpacking, at the lake, in the mountains, snowskiing, etc. I think you get the picture, I am rough on cameras. I picked up a olympus tough a couple yrs ago with an underwater case and I am pleased with it. It looks like hell, but still works great. Sand isn't an issue, cold doesn't bother it, Ive gone snorkling with it many many times without the case. It even survived a 30ft free dive without the case. Its easy to use which means when its in the case and Im diving I can still use all the functions. I can stick it in my pack or pocket and not worry if it rains. I've dropped it in the lake, on a rock, sat on it, etc.
I am not a photographer by any means and don't know squat about cameras. I think it takes great pictures even after the abuse, and thats important in my book. The ability to drag it anywhere without worry means I take pictures when others have left their cameras in there rooms.
Thats just my 2 cents though