I just bought a Beretta 84F from their Coldwater, MI store. It was used and cost me $298. I have seen similar guns at Gun Shows for $500-$600. They had to send it to Castleton and I had to wait a few days, but worth it. I also noticed that the long guns are not behind a counter, but against a wall where you can pick them up and look at them without clerk help. I drive to Detroit frequently and will continue to shop here.
I've been to that Gander and 298.00 for an 84F is a heck of a deal. It's really the only reason I go in to any Gander is to find that underpriced used gun. The new gun inventory rarely changes and it overpriced anyway.