I think all those libraries (Ai, BBB, and VI included...) all share the same problem: as they expand and start to allow access to a huge number of articulations, sounds, effects, techniques, etc, they also become more complex.
The "installation" side (getting various computers together, installing the software and the samples, setting up the sequencer...) is complex but only needs to get done once.
The problem is the actual use of this new power by the composers. More parameters mean more controls, which are usually proprietary and thus need to be learned each time a new product comes along.
I really think the problem lies in the fact that we *already* have a language we all speak and commonly use... we have been using it for years... most of us know it extremely well... music notation! And we find ourselves having to learn various technical ways of getting specific sounds out of our various libraries... Even though there's usually a way to convey it easily on a score!
The world of music notation is ruled by strict conventions... this is obviously not the case in the world of orchestral libraries: all of them use different controllers, different interfaces, have different ways of interpreting volume, expression, modwheel, etc. etc.
My dream is for a sequencer with a *real* notation / score program; like a crossover between Logic/DP and Sibelius. You would not use "tracks" for your accoustic instruments anymore, but regular music staves... But also, a notation program that would cleverely analyze its content: When putting a dot over a note, the virtual instrument would switch to staccato. When putting a slur or inputing "legato" it would switch to a legato patch. Etc.
You would be writing music like it's supposed to be written... on a score! And for all the synth, loops, and effects stuff, you would still have regular tracks available.
Notation programs already do that for some things. For example, if you put a "pizz." text element, the program automatically switches to another patch. That's the concept.
I am convinced that the sample libraries in themselves *have* to be huge, with hundreds of thousands of samples, to convey all the necessary articulations and technique.
But the sequencers / notation programs have to catch up at some point. We need some kind of standard API which would allow virtual instruments developers to allow us to use their amazing libraries easily.
When I hear BBB, I'm amazed at the sound quality - but at the same time, I know it will require a lot of tweaking around.
It's just too bad, and it is and will be the biggest issue with great-sounding virtual instruments libraries until "someone" can find the answer on how to integrate these easily with a real notation program.
I spent 20 years learning to play music, and 10 of them learning to write it.... I want to apply that knowledge to the world of synth orchestra... instead of speding time re-learning new tools every other year...
I'm sure that makes some kind of sense... don't you think?
Anyway... sorry for the ranting [:)]
Jerome