+Brian Nicholas Okubo
Your clearly missing the point here. You bought a phone from a manufacturer who puts addons (touchwiz etc) INTO android. THEY are either spending 6mo-year to update their addons with each new android version, or cutting you off from the updates completely. Google released it, your free to update your phone all you want, but your MANUFACTURER is preventing you from it.
YOU made the choice to be beholden to your manufacturer in order to get the 'bells and whistles' they provide with the addon rather than a phone with 'raw' (aosp) android which would provide you with updates right away. Google is not to blame here, Your phone manufacturer dangled shiny addons in your face at the phone store, neglected to tell you the price of it would be that you are stuck with THEIR update schedule, and you made your choice. Either intentionally, in which case you have no room to complain, or because you didnt do any research whatsoever, in which case you have no room to complain. YOU got YOURSELF in this mess because YOU chose to put a third party between your phone and Google. There are two ways out of this mess (that again, YOU got YOURSELF in),
1. google search for roms, find one for your phone with JB, and install it. You will lose the manufacturers' bloatware, but you will have current-version AOSP android, which runs all the current android stuff.
2. Buy a new phone, choose wiser this time, get a Nexus or wait for the GS4 to come out with AOSP in a couple months. Personally, I suggest Nexus, its a third of the price with 95% of the hardware of a GS4, and hassle free, but the choice is yours.
Of course, you are free to keep the phone you have, with an out of date OS, but dont go expecting Google to bail you out for your poor decisions, or your manufacturer's unwillingness to support their own software. Google did their part, they continue to release new fixes and upgrades for your phone, but you let a bully in the middle and hes keeping them from you hoping that you will buy his newer, shinier phone (its forced mortality, aka greed)
This is a very large, very well documented issue. The manufacturers arent forthcoming with the imposed limitations on updates that come with their addons, and most Android users, particularly first timers, arent tech savvy enough to feel comfortable with rom'ing, nor are they used to actually doing research (since they likely came from Apple, and Apple-boys just do what their told) so inevitably the first android phone or two everyone gets goes terribly out of date after only a year or so. The problem is most of those people then blame Google instead of just learning about the issue and pressuring the manufacturers to be more upfront and honest about their products and practices.