What airsoft gun should I get?

I want to get a second airsoft gun just as an extra to bring to the field. It wont be used a ton, but it will definatly see some use. I'm torn between the Double Eagle M3 multi shot shotgun and the Tactical Force TF11. The DE is reliable, cheaper, and the shells are cheap. The TF11 has sheer firepower and fps. I'm not trying to compare smgs and shotguns but I want to get one of them and I'm not sure. Any thoughts?