professionalism and ebay tend not to mix in a LOT of sellers, because it is so easy to defraud people on ebay.
Even if a seller's intent isn't fraud, it's easy to marginalize someone you will never meet or do business with again. There is something to be said for actually kknowing your dealer. That gives him a reason to provide good service, he wants you to come back. this isn't necessarily true on the Bay of E.