Yeah, but it's become clear that the PC isn't going anywhere at this point, and why should it, given the miserable experience of trying to do real work on a tablet?
I'm not hostile to iPads per se, but I think at this point we have to acknowledge that the supposed revolution where people would never buy PCs anymore because of tablets never materialized. It's another category with a somewhat narrower niche and it works great for some tasks, but not for others.
Also, phablets have eaten into some of the demand for them.