A valid point as far as backup is concerned, but I am looking at Audiobus 3,Camelot Pro, and Imazing. I am trying to be careful of duplication and wasting limited iPad capacity.
Camelot pro, offers the same as audiobus with midiflow..
Audiobus offers much much more, but is less straightforward..
Camelot pro only supports au units... and not the dsp ones
Audiobus also allows the connection of daws to eachother
In my vision, if you have audiobus, you dont need camelot pro
Unless you aim of integrating your ipad with a pc/mac daw.. and another camelot pro client on them.. or if you have hardware specifically supported by camelot.. which currently only supports synthesizers and high end workstations