All of your comments about scouts are right on, in my experience. With my troop, I try and do 2 backpacking trips a year, minimum, with at least one winter sled haul in addition. This year we did 1 and the sled haul was cancelled from lack of snow. Last year we did 3 with a 50 miler in there and one sled haul. But, talking with other troops in the area, we are the exception and backpack way more than most. A lot of troops don't backpack at all. You need leaders that want to, or even know how to. I have to pressure some of my leaders to go, just to get the minimum number required so we don't cancel trips.