I think composite stocks are very smart for the reasons stated before. They are very serviceable and help a gun keep zero better! At least those are my thoughts on them.
Now that being said, I would never put a plastic stock on any sidelock. I feel it would be sacraligious to me.
My local toy store had one hanging on the wall for years. No one wanted it. Then I guess someone finally bought it, probably a democrat, because it's gone now.