i bought one of my amps through audiogon, I posted a "wanted" add, i talked to the individual over the phone for a while before i bought my amp from him. Overall i have had a good experiences with audiogon. I get the perception that the people selling on audiogon are possibly more respectable than the people who sell on ebay. It seems like the people on audiogon are much more professional than a lot of the people on ebay today. Ebay use to be good, 10 or so years ago, however today i do not trust Ebay very much at all... That is just me though.

Hope this helps