Much of my gear is military surplus, simply because it's really good bang for the buck. I try to avoid camo when possible and prefer OD.
All in all, I prefer to stay invisible outdoors. I spend a fair bit of time hiking in the woods or climbing a mountain or two. To me, it's as much a way of staying in shape as it is getting away from the city, the crowds and traffic.
So when I'm in the bush I like to be left alone. When I camp for the night I always pick a quiet spot well away from the trail, some place where the fire won't be seen easily for any distance and I try to blend in with the environment. I also disturb the wildlife a lot less that way and can experience the outdoors much more intensely than the casual hiker.
So far, I've never been in a surival situation outdoors. I guess I'll just keep wearing clothing and gear in OD or any other subdued color, even camo occasionally. 99.9% of the time I spend outdoors is to get away and relax, which means I prefer to keep a low profile. If I ever need to catch attention in the bush, I have many other ways to do that. But I sure won't ruin my entire outdoor experience carrying a bright backpack or some other eye sore. YMMV!
