I'd agree, it's not worth paying that price for an 8th gen Kuro.
That said, if picture performance is your main priority, It's disheartening looking at what's available right now.
2010 Panasonic: floating blacks, some motion issues, buzzing/whining.
2011 Panasonic: so far, floating blacks and buzzing reported by owners in the UK and stateside (let's see what happens with the VT30).
Samasung D7000/D8000: clouding, banding and motion stutter (missing frames) reported by owners.
Having looked at so many TVs of late, I couldn't find a single LED set that didn't suffer from backlight bleed to some extent, which is less of a problem during the day. If you want to watch a film in low lighting, however, it's quite distracting and I wouldn't find this satisfactory.
That's my dilemma right now. Keep my V20 and live with its tinnitus inducing whine, or return it and spend more for a TV that still doesn't work properly.
I know this all sounds very negative. Some will suggest I'm too fussy and should focus on the positive aspects of performance, but I really can't find a TV on sale at the moment that doesn't suffer from a problem I'd consider more than a little distracting, no matter how much I'm prepared to pay. I'm open to suggestions...