It looks like the prices for the 34-inch ultra-wide QD-OLEDs was not a fluke, since even the 55-inch and 65-inch Samsung QD-OLED TVs appear to be priced lower than anticipated. According to the Amazon leak, Samsung's new TVs will be priced even lower than LG's C2 OLEDs.
https://www.notebookcheck.net/LG-s-OLED-TVs-could-be-in-trouble-Amazon-leaks-lower-than-expected-prices-for-the-Samsung-QD-OLED-TV-lineup.608819.0.html