I've never really been drawn to original bikes except to sell them. I never wanted a museum, just a stable of bikes I can call my own by tinkering.
This 84 Norco was all original but my arms rejected the bullmoose bars and my knees can't spin long (normal) cranks Before and after.
This 58 Raleigh Superbe 'clubish' bike is mostly all there. No inclination to ride it.