What's a fair price for an Audio Research Reference 75?


The Ref 75 doesen't seem to come up for sale very often. I don't know if it's because they are rare, or owners are just hanging on to them, so I'm wondering what would be a fair price to a buyer?
audiojerry
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I got the SE version dealer demo for 5K.  Paragon is offering BRAND NEW ones that ARC dumped on them in both color choices. You might be able to snag a new one for 7K-ish.  Ive seen MANY of these for sale as HIFI SHARK bears out so not sure where your looking.
Wow, an SE for 5K? What a lucky man! 

Is it possible to upgrade a Ref 75 to a 75SE?
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