It's getting hard to justify upgrading an old bike in this day and age when you can get a brand new road bike from bikesdirect.com for less than $300. The big factories in Taiwan can produce a new bike for less money than it cost to refurbish & upgrade a vintage bike. So, if you have an average ordinary bike that needs expensive repairs it often will wind up in the trash receptacle. The only bikes that get upgrades & repairs anymore are high end or collectable. And, even some of those wind up in the trash now. It's really tough to make a living off the margins on the average ordinary bike now.