My second experience with snobbery at Marty's, which is why I'm sharing it now.
My son (age 13) and I took his bicycle to Marty's to see about fixing. The gears somehow got stripped, almost as if it was cut. I was told by one of the employees that, because it isn't a very good bike in the first place, it isn't worth repairing and there was really nothing they could do.
We then took it to Century Cycles in Rocky River, where they were happy to install the $18 part his bike needed. In the opinion of the guy who helped meat CC, it's a perfectly good kid's bike.