I know all that, but in an office, you will not be encoding DVDs, listening to MP3 and recordign a TV program will you?
Sure as hell, I do a lot of ghost hunting and yes, I have everyones video tapes and disks when we are finished and sure enough, I need lots of CPU power as I encode the disks and the Tapes into DVD VOB format, and while Im doing half a dozen of those at a time, Im also burning 4 DVDs and while they are doing that, I might be playing WH40K-D.O.W perhaps, so I myself need loads and loads, but again, we are only a small minority of the masses of users out there... A Very small minority.
The vast majority of users out there do not need such power and quite probably never will other than to trawl through their new O/S as has bee nshown to me with the number of users who have a perfectly good system, but they upgrade their PC just because they want to run Vista!!! - I mean, come on!