That is very true. The best OLEDs are the first sets out there that actually could approach the great black levels of Plasma. New technology comes out all the time: some new mastering displays are dual-layer LED, and there are advantages of these over OLED, particularly for sheer brightness. Some can hit 4000-5000 nits for Dolby Vision, which is just about retina-searing levels. I'm happy with 1000-nit HDR and think beyond that gets pretty silly.