i think you're wrong my friend
(1) intel showed off a teraflop chip - 80 chips combined into one - said it would come in five years or sooner...
http://arstechnica.com/news.ars/post/20070212-8824.html
(2) digi has processing power - now becoming irrelevant as intel speeds and quads / octo and perhaps 16 core tigertons in the second half of '07 - (45nm and new gate process btw)
http://www.techreport.com/onearticle.x/11099
(3) manufacturers of plugs are porting them over to AU - why? they see the writing on the 'intel' wall
(4) it isn't going to happen overnight - people aren't going to drop their digi systems - but it will gradually change
(5) apogee and perhaps others having direct support in the software
(6) dollars rule - unfortunate but true - if a comparable system is able to do the same function $15,000 - $20,000 or $10,000 what would you buy? the change won't be huge in the beginning, but those coming into the market will choose the lesser $$$ system...