Last time I bought speakers before this was 2007! Last TV was 2013. Previously I'd managed to run a pc made of second hand parts from 2008 to 2017 with no upgrades.
I think you are correct in a way. I do like the TV and sound bar. But also I'm wary of the addictiveness of reading reviews, upselling myself to higher specs and higher price than I'd originally intended.
There does seem to be some sort of dopamine hit with researching options.
I think you're overthinking it. If you're buying something that's going to last for 10 years, spending 20% more for higher specs probably isn't a waste of money, if you actually use and like those extra features. It's better than getting the cheap base model and then being unhappy with it and wanting a better one in a year or two. With a higher-spec model, you probably won't feel the urge to replace it so quickly.
I think you are correct in a way. I do like the TV and sound bar. But also I'm wary of the addictiveness of reading reviews, upselling myself to higher specs and higher price than I'd originally intended. There does seem to be some sort of dopamine hit with researching options.