I have no problem assigning some of my bikes to the art category, although I do ride any/all of them when I feel the need to do so. If it feels like art, hang it up and look at it. Then ride it when a special need surfaces.

That is the plan for four of my bikes, the other two I will ride as often as opportunity presents itself. Not sure about the next one slated to join the stable - a nineties something Trek 2120, an alloy lugged carbon fiber steed that I am nervous about buying. Sorry, no pic yet.