I want Google Stadia.
My internet bandwidth is more than enough for 4k 60 FPS and price for their service is pretty good - better than $3k PC for 5 years - you need to upgrade GPU at least every 3 years and CPU every 2 years (and, therefore, motherboard) to keep "high-end PC" title and play new games on "ultra" settings. Here they promise the same for a price, comparable to what my high-end PC takes for electricity.
Where are you getting this data from? 2 years for a new CPU? My gaming pc from 2015 that cost just a little over $1k runs all recent games on ultra just fine.