My Acer AIO Desktop only 2 and a half years old has chucked it. It was left on sleep when not in use for the last few weeks because of previous problems trying to start it.
I came down yesterday morning to find it with a blank screen, after trying to start it with no success I took it to the guy in the local computer shop, and he told me that is it finished, it was caused by a little mark on the screen, he said he would not recommend trying to fix it. That's the third Acer in over 20 years of using a computer. No more Acer's for me.
I know one poster in particular who has had an AIO desktop for years with no problems. But no more AIO's for me. I am going back to an ordinary desk top this time.