I actually saw a turboprop DC-3 on the taxiway at Dulles Airport a few years back, while I was waiting around to catch a flight in a much more boring plane. It looked brand new, all gleaming metal and fresh paint. A beautiful sight!
I saw one for sale on Controller recently that was in spotless condition done up in Pan Am colors for barely under a million. Though the maintenance costs on that beast and hourly operating costs would eat you alive.
https://www.controller.com/listings/aircraft/for-sale/220858...
It's a workhorse and as much as I miss the thunder of the radial engines it's nice to see them get a new life. I doubt the C-54 will get the same treatment but that would be impressive.