That's one of the oldest butcher jokes ever told. Sure there is a left and right side to a cow or steer, but there is no difference in the quality of the meat, A few years ago I asked three old fart old school butchers about the left and right hand thing and they all smiled and said basically the same thing, ' them city slickers pay more for the left side' They would charge as much as a dime more for it because the customer thought they were getting a better product, and if any one asked for a left side of beef the butchers would charge more per pound, ask any old time butcher (if you can find one) he will just laugh and give you the skinny on the deal.
I only smoke left side ribs and butts. :grin: