Actually, if it has been relisted twice on eBay, he's selling it too high. The WHOLE WORLD doesn't want it for $600. Two weeks in a row no less!! I'd say e-mail him and ask him if he'll put it at $500 on a Buy-It-Now deal. If he does, buy it now. If he wants to finish a deal outside of eBay, be careful. You will forfeit all eBay and most PayPal protections by doing a deal outside of ebay. But I would try to negotiate a lower price with him. Tell him you can walk down the street and buy the bass new for $150 more. He can't argue with the truth.