It will depend on your level of "video enthusiast-ness," honestly. The OLEDs are considered to have the best overall picture you can get, period. This TCL (if it's like last year's) will have great performance at a much lower cost, but everyone has a different "how much is 'the best' worth to me" threshold.
I'd liken it to the mid-gen consoles: for a huge swath of the population, the Pro and the X have benefits that won't be important to them, whereas this forum will tend to think those benefits are worth the cost. You could probably extend that to the last-gen as well - there are tons of people who are still on 360s and PS3s, and love them.