Yea watch their ad's from now on, every once in awhile you'll see the buy 3 get one free deal. Thats the way to go. I worked at a pepboys for, ohhh..4days before I blew out, but I did notice them M/Ts sitting on the rack. Never knew they sold those.
here are a couple more pics i snapped for reference, these are 31x10.50s