Does TV picture quality even matter with less than reference quality material?

[caiman]

For years I've been obsessed with picture quality on the TVs I buy. I'm currently enjoying my Panny 65ST60 plasma, which I purchased for its stellar PQ reviews. When I first got it I popped in Prometheus to bask in the set's inky blacks and superb colors. But I soon went back to my more typical viewing habits, which consist mainly of 80s horror, silent films, low budget indie movies, and grainy 70s stuff.

Now that I've had this set for a few years, I've begun giving consideration to my next TV. OLED seems like the logical option. But the vast price difference between OLED and top-performing LEDs is what led me to start thinking about this. Do I REALLY need to pay an extra $2,500 considering the type of stuff I spend ~85% of my time watching? Will Basket Case, Buster Keaton shorts and Luis Buñuel films REALLY benefit from OLED technology?