There's a skate shop in my town that's been around forever and seems to do brisk business. Probably helps that there's a popular community skate park right down the block. From what I've seen most operating shops are relatively small, legacy operations with 2-3 employees, as well as a favorable lease agreement and/or own the space outright.
That said, I also imagine the monetary side of things would be a non-issue for Bam, if he wanted to he could probably run the place at a loss in perpetuity assuming he put someone competent in charge of the financials and didn't tard up the day-to-day operations too much.