Windows 8 biggest downfall is apps...
I have 2 roommates and for the holidays I decided to buy them iPad minis, WHY?
because it came down to functionality, with iPads they can do online banking, deposit checks by simply taking a picture, visa transactions, you can almost run a business with an iPhone. You can access your windows computer, even run media center.
they have AT&T so for $10 each they will have 3G connections. For god sakes they use it at the local grocery for coupons and price comparing. They buy their bus passes, they use them as a transit pass. These are just the tips of the iceberg.
I have 7 windows machines, some with 8 and others with 7, the only reason is because of media center, we use it for our Comcast TV setup, eliminating the need of boxes and saves us $50 buck a month in charges. Media Center is hands down king in the media center world, Plex, XBMC, Roxie, Google TV, Air Apple don't come close.
But with that said, the windows 8 crApp Store as we refer to it, is next to useless. I don't need thousands of useless link apps to Justin Bieber, Ellen Degeneres and every other star website , I have a browser for that. Sooooo, unless Microsoft starts addressing real world needs, it might as well tuck Metro to bed, because it will be lights out.