Like stated earlier in this thread, I think we are unusual. I don't think the average gun owner starts to panic when they get down to their last couple of thousand rounds. I think the average gun owner has a box or two for each gun that they own.
Growing up I can remember my Dad had a couple 20 rd boxes of 30-30 and the same for his 12ga. up in the front hallway closet where he kept his guns. In a cloth drawstring bag in his dresser there was a revolver with a 50 rd box. This was in the 60's and 70's. To quote a singer/songwriter from the same era : 'The times they are a changing'