I agree with Henke 100% but am not sure I'd recommend you questing for an early Colnago Master or the like, at least not right yet. While they're cheap when compared to today's top liners they're not all that cheap in absolute terms for sure. Italian frames and Campy Record always have equalled serious coin. Trust me on this.
Having said that it could be quite easy to get a better vintage bike for not much money. Lotsa of 80s racers out there with Shimano 600, SunTour Cyclone and Japanese frames. Beautiful riders and you've already dealt with friction shifting; a system that seems to scare the bejeebus out of riders who have only SIS or Ergo experience. Of course some people buy new Mustangs with automatics too.
Of course you got your bike for the best possible price.
Ride it and keep an eye on yard sales, Salvation Army stores, etc. Might find a winner that won't take much out of your new bike fund.
