Ok despite personal prejudices for or against, I've spoken with grammy winning engineers who say that 96k is the default in their studio because there *is* a different, especially with processing. My only point being people are using it whether you like it or not - I don't want to get into whose right or wrong on that, except to say if it's a worthless exercise nobody can hear, why did VSL record in 96k in the first place? I also do absolutely hear a difference between 96k material and 44.1. Even if the tracked material was 44.1, processed in 96, and dithered down, there is a difference, and certainly with original material in 96, processed in 96k, and delivered to 96k, there is a difference. It's also a great thing to be able to release music in 96k. If Vienna releases their library in the full 96k glory - I think that would be used by a lot more people than you would think. Again, prejudices aside, 96k is the new default standard and is spreading through more and more pro digital studios around the world, and for a good reason. Again, even when delivering to 44.1, processing in 96, with source material at 96, makes sense. I think over larger mixes especially, it would make a difference.
Edit: A big point for the end user if you sell your music to the public, or to a studio for that matter, is marketability - 24/96k is HD and if your source, processing and delivery are 24/96 then your production is HD.