(goes to fixing up my ne Bottecchia)

I don't think I want to go all out on fixing up the Bottecchia (see thread Bottecchia Pics), but I do plan on keeping it in its form as a road ten speed.

Question: What elements are any of you willing to compromise on when fixing up/restoring a bike. I know that it is relevant to the value... but in general...

Like... handlebar tape. It has original cloth tape that is pretty grungey. Do you just go modern stuff? Or hang onto the old stuff