"When parents want to edit HD videos of their kids taken with their camcorder they will not run to their iPad to do it"
That's the problem right there. I don't know many "parents" (== non-technical-people) who are able to edit HD Videos, at all, period. Most non-technical people I know have memorised how to do the few things they actually need from their computer, like check emails, compose documents, and use the software-de-jour of their workplace. But anything beyond that is massively more than they know how to do without running to a more technical user for help.
The whole argument is, iPad makes it possible whereas before it wasn't possible, forget if it's fast or not.
I agree with your observations. They are sound and amplify OP's point: "I am not a Mac anymore".
Personally, I haven't even bothered trying an iPad, but speaking as a previously satisfied user of the Apple's laptops, the OP's comment very much resonated with me.
I also would like to note that (as mentioned elsewhere in this thread) that Apple software's propensity to assume the Big Mommy role is hardly a new phenomena. Apple was never an "open system", it is true. But there was a golden age in the '00s that produced just the right mix of open and managed systems.
Finally, there is a political subtext to all of this. Apple clearly believes in ('benign') authoritarianism -- it is in their DNA -- and given their empowered position in the computation loop, I no longer feel it is appropriate to support their bottom line, specially given the unacceptable stated position of Jobs on matters such as free speech.
That's the problem right there. I don't know many "parents" (== non-technical-people) who are able to edit HD Videos, at all, period. Most non-technical people I know have memorised how to do the few things they actually need from their computer, like check emails, compose documents, and use the software-de-jour of their workplace. But anything beyond that is massively more than they know how to do without running to a more technical user for help.
The whole argument is, iPad makes it possible whereas before it wasn't possible, forget if it's fast or not.