870 is a good BANG for the buck.
A few years back I got the Bennelli blackhawk and absolutely love it,
I actually started using it for upland birds over my Browning over and under "Upland Special".
I know it's more, but you'll have it for life, just get a higher limit on the plastic.
Remember you can't take it with you when you leave god's earth, spend it like a drunken sailor in port for the night!