upgraded a short while before Christmas through necessity, as my old Samsung had stopped doing firmware updates (for all aspects). which sucked.
tried muddling through for a while (it wasn't even a smart tv
, but it was good), but when the Digital Rights Management issues became too great and every second purchase wouldn't play
, it was more than time to upgrade!
unfortunately i don't have 20/20 vision, so while 3D is fun, it's not a must-have for me. i'm very impressed with 4k so far. most of the 4K releases i have so far are either documentaries (e.g.
Planet Earth II) or films where the 4K transfer looks to be pretty good (
Fury Road, etc). there are exceptions -
Suicide Squad is bad on 4K, but then 4K is just like blu ray in one regard - some releases get it right, and some are no better than the previous format.
while i can genuinely see a difference from blu ray to 4K in terms of picture quality, for me it's the
higher dynamic range on colours that's really the biggest reason to have 4k, if you are considering. even my significant other, who finds my obsession with cinema all a bit strange, said unprompted that they could see an immediate difference/improvement. the upscaling on traditional blu ray or even dvds is also pretty marked.
now running a 55" Panasonic TX50EX700B + their entry level 4K player (Panasonic DMPUB300), through a Sony STRDN1080 and Canton MOVIE 75 surround. i much prefer my new Panasonic's more natural look and feel for cinema than the old over-saturated Samsung. but then, that;s why there's so many models - each to their own.