I agree with lwin above that AG is exceptionally anal about controlling the dialog between buyers and sellers. And I feel their selling fees are excessive and laden with low-ballers. But I think they still are the standard for audio product sales and forums. USAM has no seller fees and doesn't try to control communications but I have found many more problematic buyers who communicate interest and then disappear forever, even after promising payment and there seems to be no recourse for these parasites. I have reported them and nothing ever happens and USAM won't let the seller give feedback unless there has been some type of exchange. So I guess there is room for both audio product sales websites but both have their issues.
