So I've got an early 90's Athena wheelset, Athena hubs and Campagnolo Ypsilon rims. I think the back wheel needs to be rebuilt soon, rim seems to be warped more than a true can fix, but thats besides the point really.
I've had people tell me I might as well just upgrade the whole wheelset while I'm at it. I dont have any interest in going over 7-speeds on this bike, don't care to spend that kind of money right now and to be honest I would like to do my first wheel build anyways. So the question is, whats the real advantage, if any, of upgrading my wheels in this case? How much weight do I really stand to lose?