And opting out of the upgrade isn't much of an option, due to app upgrades that require the latest OS. And I guess you can also opt out of app upgrades, but then you're left with a 2-year-old+ device and 2-year-old+ software.
Maybe this is intentional. But for me, at least, rather than upgrading, I've learned to just move on to using a combination of my iPhone and MPB, and my iPad (3rd gen) mostly collects dust now.