There's also the display IR issue. There are lots of scare stories on YouTube, but I'll have to wait to see how bad it really is on my specific machine.
I've seen the YouTube stories too and I don't doubt that some people are affected. But I tested eight machines before I decided to buy mine, six of them had LG screens. None of them displayed any image retention at all. And the one I finally bought doesn't either, even though it's an LG screen.
It may be true that most specimen with IR issues have an LG screen, but I don't think it's all that widespread.