I agree that it says that people are willing to pay more, more often, for a smartphone than they are willing to pay for laptop and desktop computers.
However, how you can then extend this to:
> The market has spoken and they love the locked down, walled garden approach.
The market hasn't been given the opportunity to choose a more open iPhone or a closed, locked-down iPhone.
When the market is presented with both options, at variable prices, we can then determine what, if any, people are willing to pay for one vs the other.