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>It only received one major update: ICS to Jellybean.

I am not sure people will agree with that. Even if Google called all 4.{1,2,3} releases JellyBean they did introduce significant new features in every version. Take a look - http://www.android.com/about/jelly-bean/ . 4.2 brought new camera with PhotoSphere HDR etc, full Braille accessibility services, stock browser HTML5 Video support and better performance and Gesture Keyboard. 4.3 brought Restricted User Profiles, OpenGL ES 3.0, Bluetooth LE/AVRCP etc. Not more of the same IMHO. (Now some of these required HW support not available on the GNex but still the point is it will work well at least another year on 4.3 giving it a 3 yr lifespan - not bad for that piece of crap hardware - it uses a TI SoC and TI isn't in that business anymore.)