You do know that the features included in the official OTA that just was released a few days ago have already been placed into most of the available ROMs, when you root, you're really not "losing" the ability to get OTAs, you just are losing the ability to get them automatically sent to your phone. It just means you must install then manually, or, i.e, update the ROM your using.
When Flash 10.1 comes, do not worry, it will be in every ROM in a matter of hours. Or even before it is officially released - everything is possible after rooting. Also, after rooting, you are allowed to just do "more". Like have custom trackball colors, Nexus Torch, other apps that require ROOT access - and, for those who like installing different Android Builds, like Sense, that is all possible too.