I've been eyeballing a new shotgun lately to back up my old Winchester and seem stuck on a new Mossberg. This will be used primarily as a bird gun, possibly waterfowl, and an occasional buckshot only deer hunt. I have found several good deals in my area on both the 500 and 535. It seems that the 535 is only about $30 more than the 500 and I wonder if there is any real reason to pick it over the 500.