Joined: Jun 2014
Posts: 4,628
Likes: 943
From: Ontario, Canada
Bikes: iele Latina, Miele Suprema, Miele Uno LS, Miele Miele Beta, MMTB, Bianchi Model Unknown, Fiori Venezia, Fiori Napoli, VeloSport Adamas AX
I used to collect antique British/Canadian militart rifles. the FASTEST way to lose a lot of value on them was to refinish the browning/blueing.
With bicycles I think part of the reason is that a repaint can hide what model the bicycle is or even the maker if one uses new decals.
Cheers