You make a very good point. It bothers me when I see rosy predictions of how much better things will be when we have everything in the cloud. There's still way too many places where you can't get a cell signal for me to be convinced to put all my data in the cloud. Maybe as a backup copy but I'm with you. I prefer to keep my data with me.
I agree entirely in the wireless world. IBM's hardware/software/storage solution is not oriented toward wireless consumers users, but Big Data and analytics tha can be quickly configured run and then disassembled--the rental paradigm.
Cloud computing is great when you are connected - and as a mobile society we can gain access to our information from many locations. However, cell phone users are all too aware of the many places in which they cannot get a signal. For WiFi only devices, the problem is much worse since signals may be absent or require expensive subscriptions. I believe in having local access to all my information (hence my laptop computer rather than a mainframe terminal connection). I accept that I cannot have access to the Internet at all times (cannot access Wikipedia for information that I never knew) - but I expect to have access to all my legacy information all the time.