A gun that requires good aiming to be used is a skilled gun. Far more skilled than any of the bullet spitting SMGs. So yes, I will try that argument. Because it's helluva lot harder to use a KSG than an MP7 or a Skorpion.
Not unlocked the KSG yet, but you should give the pump action a fair chance, with long barrel and the laser sight its tonnes of fun to use, and puts down most mofo's with a single shot. Granted the range is pretty **** and it's ruining my KD but for me its the most fun so far.