Audiogon is a community, on-line, but still a community. One attribute of a community is the concept of sharing /reciprocity. If someone on Audiogon doesn't want to share their system with fellow Audiogon community members, so be it. I'm sure they have their reasons and who am I to judge their validity? But when it comes to doing a financial transaction with one of these people I'd be a wary. Buying/selling is about give and take and I would be dealing with a non-reciprocating person.
That said, if I really want to buy/sell something it's just another factor, not and overriding concern.
