Great read guys.
I had already liked reading Tim's open letter, I really enjoyed reading both your points. Very enlightening.
I strongly agree. Though it seems that's when there is some sort of lock-down phenomena.
As human beings, we naturally get used to our environment and then tend to be protective of it. Applied to cloud-based tech this is dangerous.
People will be increasingly reticent to leave some web-service when that's where they have all their data, and that's the tool they know how to use, regardless of a cost they cannot "feel".
Especially if millions are injected to make the place look like a flowery garden.
Feeding data must become something quite unacceptable indeed for the scale to tip the other way.