Yeah the main thing for me is the way you could drag select some audio, then click-drag it onto the Soundforge backdrop to create a new audio file in one move... you could then, say, apply a reverb, reverse and fade-in that new file, then drag it back over holding a modifier key and you'd be able to crossfade it visually back over the original file, all without saving or loading anything... Real sound manipulation possibilities not possible via a DAW without fiddly bouncing / reloading the bounced files.