One of the few things you can do with guns but is exceedingly difficult to do with bows is shoot ducks and geese on the wing and, even if you could, it would be anti-cost-effective, i.e. you can justify losing an arrow for 75 - 200 lbs of venison but not for a <10-lb duck or goose. That's what shotguns are for.
I stumbled onto this one...
These are being sold on gunbroker.com and auctionarms.com at something like $200 under Gander Mountains price, which is probably dealer's cost. Seller is one of America's largest/most major shotgun sport centers. This is a very good shotgun which Beretta probably views as a low-end hunting gun and what I suspect might be happening is that a big dealer makes his money on guns costing a good deal more than the 1K for the Xtrema and has to take a certain number of the Xtremas along with the expensive guns and then the Xtremas get sold on gunbroker or auctionarms.
They're basically giving the Xtrema away at cost. The Xtrema is imperviouis to salt spray and adjusts automatically to every kind of shot shell including the 3.5" mags and comes with enough chokes to do any sort of thing with it. Compared to semiauto shotguns of years past, it's much faster. It's gas operated and the gas system compensates for all known 12 guage ammo automatically, and then comes off as a single unit for cleaning.
A couple of reviews I've seen describe it as an ultimate functional shotgun: