I know it was fashionable to dis the so-called Schwinn "lightweights" back in the day, but I consider the Varsity and Continental series to be right up there with the Model T Ford and the Piper Cub in terms of making their form of transportation popular and accessible. The method of construction of the frame was unique too, and if Schwinn had used more alloy parts in other places the weight could have been made competitive (more or less) with their rivals.
I found eBay to be a wonderful source for NOS and slightly used parts to restore and maintain my 1977 Schwinn Sportabout (a cheaper version of the Varsity but with better derailleurs than the Continental of the same vintage). Again it was about respect: the Japanese SunTour derailleurs were dissed just because they were Japanese instead of French or Italian, even though their slant parallelogram design was the best in the world at the time.
I am proud to ride a vintage Schwinn of the Varsity family of bicycles. They are tough and reliable.