Why collect more than one of the same model?
<span style="font-family: verdana,geneva; font-size: medium;">Can't speak for everyone, but if there's a model that's special to me, its nice to have more than one, plus, machines with the same model number sometimes have cosmetic or mechanical changes, to the point where they almost seem like separate models. The main consideration with me is that everything in my collection has to be useful AND used. If its no longer in useful or working condition, I don't want it (in fact, I have several machines in that category at the moment). </span>