Is 4k at 27 inches wast of money?

I want to upgrade from 2070 to 5080, and obviously I want to upgrade from 1080p to a new monitor, but seeing the prices of 4k 240hz monitors is like the same price as the GPU itself, so I was wondering is 4k necessary or 1440p at 27" is the way to go (no I wont buy 5070, need 5080 for rendering and gaming)