For those who know the gun market better than myself, which is a better buy right now?

It seems the Bushmaster AR's have come down alot in price. I can get one for under $900 and have really wanted one ever since I shot one with my uncle. I love the feel and shoot of the gun, plus it looks menacing for home defense.

The same can be argued for a shotgun, plus the price is alot less. I'm on the fence, I had decided on a shotgun a while back but never "pulled the trigger" on it....(lammmmeeee.)

Thanks in advance.