Compare to PCs where Windows (and sometimes Mac) is supported for decade old hardware. Tablets seem to be intended more to be tossed out every couple years. But if tablets are to be the post-PC devices they were pitched to be, then shouldn't they also be able to be kept updated and secure for as long as Windows PCs? When you buy an iPad, how many years do you expect it to work for your needs before you by another one? Try to ignore the fact that features of newer devices often convince people to upgrade earlier than planned at time of purchase. In the comments try to add any feature improvements you believe the iPad could adopt to extend their usefulness.