It is the old conservation, restoration argument. My WC51 was completly restored, and has gained her war wounds over the years we've bashed about together. My WC54 was rebuilt in 1952, she has several panels and patches added at that time. The repair method seeming to be cut a patch, drill and screw on over damage. I could at great expense 'Invisibly' replace these panels, but they are part of the vehicles individual history. My BSA folding bike is in the same state, usable, paint work battered, amonst other things you can see the beautiful brazing used in constructuion. The condition is getting no worse, and I can always paint if I want to.