I love OLED panels and their amazing color reproduction, but I'll never buy another device that uses them ever again if I can help it. My current laptop developed pretty horrific burn-in after just a couple years of regular use, and there wasn't really anything that could be done about it, as the burn-in is comprised entirely of my taskbar and the UI elements of my web browser which is far and away my most used program / application and likely is for the majority of other laptop users as well. I'm sure they're fine for TVs where content is played "Full screen" 99% of the time, but for phones or PCs where there are common OS or web browser UI elements displayed on the screen the majority of the time the user is using their device, they just don't make sense.