If my phone is in my pocket I can't watch billionaires destroy society and the planet in real-time, and then I'll have to catch up on /r/outoftheloop later that week.

To be fair, phones have become a bit too big for pockets. I'm looking forward to carrying handles. (If transistor radios could have them, why not phones?) ;-)

Also, they didn't foresee that particular style of mustache going heavily out of style in a few short years.

And this is why I choose not to own one anymore.