It's the contrast ratios and black levels that really sold me on OLED, they look absolutely stunning in a darkened room, and the color is also amazingly good. LCD looks washed out and bland in comparison. I think it's unfortunate that so many people don't care about picture quality and that has kept LCD going when it should have been largely obsolete by now.
I don't watch TV in a traditional sense, I use my TV for movies and streaming older shows and it is only on when I'm actively sitting there watching something so the potential for screen burn is not really an issue, and picture quality is very important to me. I have an LCD TV only because I got it for free, it's not nearly as nice as the OLED sets a couple of my friends have but it's good enough for the price.