I would not pay anything like that for a TV or any technology, I am sure this TV would provide an amazing experience but not sure it is worth that. Of course 8k content is very limited but the upscaling capabilities is far more advanced in premium Tv's due to AI/ Deep Learning https://www.samsung.com/uk/tvs/qled-tv/q700t-65-inch-qled-8k-smart-tv-qe65q700tatxxu/ https://www.rtings.com/tv/learn/8k-vs-4k-uhd However if interested in 8k at the moment one of the cheaper options here https://www.samsung.com/uk/tvs/qled-tv/q700t-65-inch-qled-8k-smart-tv-qe65q700tatxxu/
As far as QD OLED goes it is hybrid technology which improves colour and brightness via the use of quantum dots. In theory it should result in incredible levels of contrast and perfect brightness. https://www.flatpanelshd.com/news.php?subaction=showfull&id=1612775487
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .