How are numbers in your group? Ours is "kind" of fine. However, I've been in and out of a few units over the years and a pattern I've been seeing is the graying of the hobby. There seems to be less and less twenty year olds. The +35 crowd seems to help make up the numbers. But you just don't see the less than 30 crowd like you used to.
Another problem are the gun laws. The way things are going I expect large size sales of black powder to be illegal in less than five years. We will get the standard line "prevent crime and stop terrorism". Yep, Civil War reenactors have to do their part in stopping drive by musketings and terrorist led artillery bombardments.