The smartphones have the best reception for the fringe areas where vendor cell coverage is spotty at best. It appears the better new technology goes into the smartphones, not the non-smartphones. Reason? Money. Development always follows the money.
Why would everyone not want and use a smartphone?
1. Screens too small,
2. keys too small,
3. plans cost too much - even at $30 a month.
Visionary:
works everywhere on the globe - one phone, one plan (duh, one world - grins)
heads-up display on my glasses able to use while driving,
all functions able to be voice controlled, ...
Now, you have my reason to purchase and use an uber smartphone and dataplan ...
hope this was not too over-the-top
all the best