OLED is absolute crap. Low brightness, slower than LCD, burnin, uses more energy for bright UIs, turns yellow with time (as blue LEDs degrade faster), and a thousand more things I don't remember. OLED is only sold because of eye-candy.
Significant advancements have been made that make degradation to half brightness slower than LCD displays possible with less energy. OLED displays are already being put into consumer screens including the laptop market with the X1 extreme gen 2, and I believe Dell and Razer are now making them as well.
