All of the above. I ride mine in moderation to preserve them, but I see no point in owning them unless I an ride them. Now if it was an NOS example of a famous team bike like a DeRosa painted for merckx in the Molteni years or some such thing I might see a point in only looking at it.
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1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear