You'll find the greatest concetration of SWB in junkyard heaven.
No, like 67chevyredneck stated, there were a LOT more LWB sold as they were used as TRUCKS, and a LWB was more useful. Until I moved down into the southeast the very few SWB I saw were stepsides used for local small business's. I can't remember ever seeing a shortfleet until I was a member of this board.