IF I were recording a drum kit live then I see aux tracks being great. Multiple snare mikes could go to an aux as could multiple kick mikes or room mikes. Then I'd take all the aux drum tracks and route them to a drum buss for final polish. This would allow for a lot of tweaking. 

I use Aux Tracks/Patch Points for all the reasons stated above: UI consolidation, parallel processing, real-time recording, just pure convenience.  But because they're not a requirement no one really has to use them.   Though personally I would never want to go back - they could be the one new feature that I've used the most in the shortest amount of time.
 

ampfixer
IF I were recording a drum kit live then I see aux tracks being great. Multiple snare mikes could go to an aux as could multiple kick mikes or room mikes. Then I'd take all the aux drum tracks and route them to a drum buss for final polish. This would allow for a lot of tweaking. 

I have not used them yet, apart from just to experiment, but I really like ^this^ application.