Yeah I would be in the 650 MAX range. IF it's truly unfired, but keep in mind when you use it the value will drop... in a 7? years maybe value will come up to meet what you paid for it.
I personally prefer to buy good condition, but used, maybe no box / papers guns that are "sleepers" if you buy them right you might buy at a price where next week if you don't want it getting your money out is easy and you might even make 50 bucks. Harder on a blue gun as they show more wear than stainless.