My local shop stocks only new gear, but one or two of their customers have high end vintage bikes that make their way through from time to time (it seems most who are into C&V wrench for themselves). The head mechanic is great and appreciates the C&V bikes and parts. He flips, so I get good deals from time to time. Latest was a set of Record track pedals off of a steel custom (forget the builder atm) track bike that a customer didn't want anymore...
...Related:
I showed up to their shop a couple years ago on a Centurion Pro Tour 15 I used to have. It turned out that they were prepping for a shop ride that was to roll out in 30 min. They invited me to tag along and assured me that I wouldn't be dropped (implied due to riding a steel bike). I most certainly was not dropped.