So would I. It’s finding the right screen that’s the problem. There aren’t any 5K screens out there and I’m not dropping to 4K. You can say many things about Apple but they do produce quality screens!
5K has proven very difficult for manufacturers (other than Apple) to market. We're at a time where people are conditioned to equate 4K to "maximum sharpness", hell you even hear people saying 4K is too much for anything smaller than 32 inches.
This only changes when 8K TVs become mainstream, so people will begin to equate 8K with maximum sharpness and consider 4K to be something inferior, and that should trickle down to monitors. 4K monitors only became common after 4K TVs became common. Until then, manufacturers prefer useless stuff like HDR400 certification over better pixel density.
It really sucks for those of us who love high PPI screens, and iMacs are the most cost-effective ways to get them right now.