Re: You should know better.
Carrier subs (and the 2 year plans that they require) are going away. If Verizon is bailing on them, everyone else follows. I'm not sure that the subs forced handset adoption or that they were just a reflection of customer demand.
That means the real price of a phone will be paid as a line item, not buried in the agreement.
Marketing means giving people reasons to use your product. It doesn't have to cost billions. Remember that many are still happy with "feature" phones that just connect to the phone network. The marketing out there still doesn't give them a reason to change.
Tablets have been a strange mix of phone and computer. Yes, I think they will become cheaper as they mature.