I was actually talking about third party software, not Windows security updates. While it would be nice if Microsoft passed the torch to another company willing to keep releasing updates, I don't ever expect that to happen. I meant that as long as companies keep writing software that is XP compatible, including security software, then that is all that really matters. In my opinion, when the security software can take care of/block the virus/intruder trying to exploit the hole, then fixing the hole is not really that critical.
Loss of updates is a non-issue to me. I've already been living without security updates anyways, call it a field test, lol. I got tired of slowing my PC down with updates after a fresh install, so I just stopped at whatever update I last slipstreamed into my install disc. Since I haven't messed with slipstreaming in a while, that means I haven't installed any updates since SP3 in x86, or SP2 in x64. I keep my anti-virus/malware/spyware up to date though. So even with all of these well known exploits, I have only gotten the occasional trojan, which gets zapped pretty quickly.
To really blow your mind, I also still use the "worst, most loathed browser that ever existed", IE6! I'm using it right now in fact, with the Google ChromeFrame Addon that lets all of this new garbage work within IE6, lol. I hate the new browsers just as much as the new OSs. Give me the nice clean, classic GUI interface that I have used since Windows 95, or too bad, I won't ever upgrade! Years down the line, I may just stop using the internet altogether if I can't even get on with what I have.
Finally, the comparison with a car can really only go so far, but I would liken the Windows updates to a car manufacturer warranty. Once you pass that 100,000 miles, you are on your own to fix, or live with any defects that pop up afterwards.

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