In ten years I will upgrade. I did just that. I just replaced 10 year old panels and a 12 year old 73" DLP. I'm good for 10 years or if something breaks. No desire for 8k currently, at all. After viewing 4k DV enabled discs with Atmos, it's as much as I could ask for. I would really like to see 4k broadcasts (HBO/SHO), Netflix to add 4k discs, but it is what it is. We can't get any standardization if the panel mfr's constantly change. Why 8k? 16k will be next and on and on.
I don't game. Used to when I was younger but no time for it now. Running a household, a family, I don't have time to play a video game, lose track of time and figure out that 4 hours just went by. My use is mostly films and 4k does them extremely well. 4k HDR/DV and Atmos are a much bigger upgrade to me than 1080p was. 4k HDR and Atmos at home is better than the commercial cineplex to me. And best of all no smartphone millennials to deal with.
HT 7.1.4: Sony X940E, Marantz SR8012, LR: JBL Studio 580's, C: JBL Studio 520c, Surrounds and Rears: JBL Studio 530's, ATMOS: JBL Studio 210's, Sub: HSU VTF-3 mk5
MB 5.1: Sony 55" X950G, Denon X3500H, LR/Surrounds: JBL Studio 270’s, C: JBL Studio 235c, Sub: HSU VTF-2 mk5
Living Room/Office 5.1: Sony 49" 900E's, HTNT5's with wireless rear channels