The ONLY thing RS sells that I consider valuable are small small crap, like fuses which are necessary for repair of systems. Otherwise everything on their shelves can be bought elsewhere for FAR less. RS won't be around long.
Radio shack is crap but does have some very geek smart employees and of course idiots as well. Micro center is the perfect model but last I checked only around 15 stores nation wide . Best buy micro stores should do ok and get way more traffic than their mobile stores. Sales still ok you shorts better hope they don't pull a Sears or you are all f kd