A great deal of these points are things that my parents, who love (and stole my) iPad really don't care about. All they want to do is watch videos, read emails, news, and play games without having to type, click, get spammed, catch viruses, and a bunch of other things that we're used to but is horrible user experience.
Right, but I suspect that your parents do not watch multi-hour movies holding the tablet in their hands. You can do that with notebook or even hybrid notebook/tablet as the device screen stands up vertically by itself, so you do not have to hold it.