Actually, there is a push to build some kind of robotic space system that would track down retired satellites, strip off components, and build new working satellites. :noway:
http://rt.com/usa/news/darpa-space-retired-orbit-539/
http://gizmodo.com/5978347/this-is-how-darpa-will-strip-old-satellites-for-parts
But I think this approach is far too complex. You need a rather robust "smart systems" or AI software and complex mechanisms to do complex manual tasks. I was thinking why not build a one man capsule and have a person do this work instead? I think a human is far better equipped to do complex manual labor intensive tasks in space like cutting welding, using wrenches, drivers, and other tools. Granted designing a manned spacecraft to travel specifically to geosynchronous orbit has never been done before as far as I know.