Re: Am I being exceptionally slow again?
If you only rooted the stock OS and left the stock recovery in place, you should still receive OTAs, although they usually remove root access, so you'll need to root again after.
If you've replaced the ROM or recovery (i.e. CyanogenMod), you'd need to revert to stock (you did make a backup?). If not, it's a complete wipe to flash the factory images: https://developers.google.com/android/nexus/images
Biting the hand that feeds IT
