If you look around you can find one or two year old guns that are 50%-60% off. Don't assume all those "buy it now's" on Gunbroker and the such actually get picked up for that price, a lot of those do not get any bids.
I've gotten year old Sigs that look and function flawlessly for $300, USP's for $400, Glocks for $350 (alot of good 3rd gens going now for cheap, glockheads want the new gen 4), etc. etc. If I can save $400-$500 and pick up a lightly used, year old gun I'll do it. Any serious issues with a gun will have a recall notice, those transfer from owner to owner-so even with a used gun I'm still covered.