Maybe a "cheaper" way around getting good sounds from your favorite VST would be for PG to implement REWIRE?
That's one of the 50 great features I had hoped to see in '14. It, too, has been on the list for quite a while. I wonder how practical it would be to write Rewire into BIAB as opposed to Real Band or Power Tracks. However, I believe there are also 32- and 64-bit versions of Rewire, which creates its own issues. (For one thing, the 64-bit version permits the use of exponentially more channels of MIDI and audio. Go to
https://propellerheads.se for more information.)
The workaround for me has been to accept BIAB as a creation tool only and just use a basic-but-decent GM synth until I port my productions into Propellerhead Reason, which, being a soft synth as well as DAW, has effectively infinite voicing possibilities.
If I ever begin using Real Drums extensively I
may rethink that and spend some time in Real Band before porting my tracks into Reason first. But my compositions tend to be pretty complex (meaning having many tracks of audio and MIDI), so I don't know how long I could stay in the 32-bit environment myself.
So ultimately I agree with Mal and the many others. Because people have and want to use advanced, memory-intensive tools with BIAB and RB, they ideally shouldn't have to live under a 3.5 Gb RAM limitation and thus be forced to use other tools. A 64-bit version of PG Music products would seem to be the way of the future.