MSRP is $569. Bud's Guns is selling it for $441. knocking off the usual 25-30% for it being used, about $300-350 probably trading it in on something else is about the best they are going to give you. now selling it to an individual, you can probably sell it for more since they are not looking to profit like a dealer or a gun store.
personally, if i can buy it new for about $450-475 new, i probably am not going to go over paying about $400-425 for a used one.