Nearest RS to me is 37 miles away. Radio Shack Express...little store within a hobby store. Never been there.
Supposedly a regular RS store 44 miles away. Used to be two here, then one, then none.
Local CB shop at truck stop on I-85 doesn't stock the steel whips any longer. Doesn't want to pay the shipping cost even for several at a time.
I think they've got a Radio Shack "section" set up in a little house alarm company near here, and that's about it. Local CB shop closed years ago.
Then again, the whip is still the most popular antenna among hunters here (at least those still using CBs). I figure there's probably a source somewhere that I don't know about.