Some computer technology is sorta overhyped, if you ask me. Pragmatically for basic computer and even some relatively fancy gaming needs, an older i5 from the LGA 1150 or even 1155 eras is just as good as, and a lot cheaper, than newer chips. Also the gain from DDR3 to DDR4 isn't really, I feel, all that impactful.

On the other hand, I did get a used All In One hydro liquid CPU cooler unit and hooked it up in a miniITX build, and that actually feels like a real quality-of-life improvement. I am now all about the liquid cooling and look down upon the air cooling plebes. :-)