Shotty range has never really been an issue. They have stopping power from a distance still (not killing, but stopping), they are amazing for clearing mobs, easy multi-headshots and they devestate tanks up close.
Difference between autoshotty and shotty- accuracy, autoshotty can get pretty shitty with a trigger paniced finger. Normal shotty is precision! Also it's slower rate of fire is a great timing mechanism, rarely do you get an errant shot with it, all of them count if you don't suck, and up close it just seems....better. Maybe I'm delusional. Dunno.
I dunno how you live without em? I mean I'm not talking about mowing ppl down from a good distance here, but they have an optimal range that you just have to wait for mobs to get into, then unleash.
cha cha