I use RB and frankly can't see why I would need another DAW. But then I was bought up on BIAB and RB on floppies and learnt from day 1 to use the two together. I know lots of people now use the BIAB plugin but i'd be surprised if there's anything you can do with the plugin and a DAW you can't do with BIAB and RB working together.

With muso, i think there are lots of people using the plugin and a DAW who have never opened RB.

maybe they are coming from using a DAW and adding BIAB as an extra resource. RB is a fabulous program and quite intuitive and user friendly even if people think the GUI is flat and unexciting.