The big factor now is the price of shot. Sportsmen's is at $49.00 per 25 lbs bag. At that price, loaded ammo on sale makes reloading a futile gesture.
A lot of the shooting clubs are now installing shot capturing devices. We have one at our club. The recycled shot sells at $20.00 per 25 lbs. The top shooters at the club claim there is little or no difference than shooting new shot. Pattern tests show a few more flyers that new shot but not an appreciable difference.