"Using an elaborate variety of tools, materials, and machines, W-M Corporation turned out a constant flow of forgeries of pre-war American artifacts. These forgeries were cautiously but expertly fed into the wholesale art object market, to join the genuine objects collected throughout the continent. As in the stamp and coin business, no one could possibly estimate the percentage of forgeries in circulation. And no one—especially the dealers and the collectors themselves—wanted to." --Philip K. Dick "The Man in the High Castle"
Does the object "speak" to you? For some, a repainted, re-decaled, fully restored bike loses some ineffable something--- even replacing cable housing is considered a transgression against "originality". For others, the pleasure of having something old lies in brining it back to new (or better than new) condition.
But the value or "originality" is a fiction created by some kind of collective agreement or shared belief. If a forgery is indistinguishable from the original, where does the difference in value reside other than in the mind of the collectors?