How will the masses make use of the huge disk drives?
People who do lots of useless video like myself may come close to filling these monstrocities.
Business users with their spreadsheets, accounting packages, contact lists, presentations, software packages and copies there of won't approach these limits.
The less tech savy users have little need for specialty apps and files, so their storage requirements will be considerably less.
and what about the old adage: Unused disk space is wasted?