Lloyd, you make good points. Dunno about that 28,000 number as it likely includes everyone who ever created a forum account since the forum was launched whether they bought BIAB or not. But they certainly must have thousands of customers in order to staff their company and pay musicians for those amazing RealTracks!!
Regarding the 64-bit I'd agree that most users prolly don't care and won't until that fateful day when it becomes an issue! But things like more than 4 chords in a bar seems like such a basic musical requirement I'd bet lots of folks would notice and appreciate that improvement.
Plus, I would think that anyone who understands and loves RealTracks would appreciate being able to exercise more control over their generation. Or maybe that is just for hardcore types!
Getting back to this thread's original topic, I know the number of users who voiced their opinion on Video RealTracks is probably anecdotal compared to the bigger picture but if I were PGM I'd certainly pay attention to the fact that the consensus here is not positive for Video RealTracks.