Mr. L said:
I'd put my money on the reason as to why all the big wigs use Pro Tools is the fallacious
reasoning of, "the more $$$ you pay the better quality" - which isn't always the case. "Oh
I see Pro Tools is by far the most expensive, let's get that".
Actually, the main reason the "bigwigs" use ProTools is because of how easily you can work with picture .... and 80-90% of work being done in pro studios is film/televison and commercial production. File transfers between Avid or Final Cut Pro will import into a ProTools session seamlessly.
The RTAS plugin format was developed second ... as the original ProTools systems were all TDM, which also required hardware that Digidesign also developed.
And, in the history of computers, as a general rule when hardware and software are developed together, they tend to work together with fewer problems. The world of being proprietary has worked great for some (Apple), and not so much for others (Sony/Betamax) in the conusmer world, but as for the latter example, the Sony Beta format was THE standard in professional video for decades ... so has ProTools become the professional standard for audio.
I don't wish to argue the merits or deficits of ProTools. It is an available option to those who wish to use it.