Got two wheelsets with Campy high flange Record hubs. Still beautiful, 30 years later, and still spin smooth. One set still has the old arc-en-ciel tubular rims, the other has modern Mavic clinchers, although the old Weinmann tubie rims came with them. 3 cross spoke lacing, these are very smooth riding wheels.
I see the Delta brakes on ebay from time to time, and they still command a healthy price. Two other old Campy items that sell for a lot - the steel cage pedals, and gum brake hoods, if they're preserved and not dry rotted.
This old Campy gear just doesn't wear out if it's cared for. Obsolete as all get out, but it still works.