The number of people that would buy a capacitor, motor/servo or PIC is not what it used to be. Electronics don't ship with schematics anymore or have nice big through-hole components that are easy for a layman to replace. I miss the old Radio Shack too, but we are in a tiny minority.
I actually went into RS this weekend for an electronic part, and _almost_ came away with something. They had a 5A relay, I need a 15amp part. It would have been far cheaper than the $10 shipping from newark or one of the online places.