Current value of a Denon AVR-4308ci?

I'm thinking about purchasing a Denon AVR-4308ci from a guy and I want to make sure I don't overpay for it. Can anyone tell me what the current value of this particular receiver would be?

Thanks in advance!
It's whatever the completed/sold listings on Ebay (advanced search ) show the unit has sold for in last month or two. That's the current market price used.