Personal Opinion:
I can't in good conscience recommend OLED to anyone who games or has small children. And this is coming from someone who still has Pioneer and Panasonic Plasma displays in his home.
OLED burn-in is cumulative hours watched. It's not a matter of if it will burn in but when. Based on your viewing habit, you may hit that pixel degradation as soon as a few months or a few years down the road but you will hit it. For those of us that play games with bright static HUDs for hours on end or with children that watch the same shows over and over, you're more than likely going to see burn in sooner.
Now if you're fine with potentially replacing your tv in 1-3 years and/or don't have children, knock yourself out. I'm going to stick with LCD/LED until the Mini/Micro LED revolution.