I watched Google Stadia announcement today. I think this is a great idea but it suffers from one major drawback. Internet connections. A lot of people do not have high-speed internet and it is getting worse. If you do have high-speed internet, some people have data caps (which is ridiculous for a broadband connection or really any connection). The third and final issue is reliability. No matter what your ISP/Broadband connection is going to go down from something at some time.
For the first two items, I think Google, Apple, Amazon, Disney, CBS, Netflix, and Microsoft should make a separate entity sort of Hulu like for wired fiber. Wired fiber is the best option in the long run low maintenance cost and will last decades. Or they could split up grants like the various City, County, State, and Federal Government agencies do to expand broadband from electric coops and telephone coops. All I know unless broadband expands to all corners of this Country these services are not going to work.
I know that in Paris, Tennessee and Inverness, FL where I have property since they are rural there is no Broadband available. Satellite is not a viable option for gaming. Which brings us to the third item I like having everything local and back up to the cloud. The gaming and movie watching I can live within the cloud but it has to be RELIABLE 99% and there needs to be a way to have a local copy just in case the 1% happens.
Just my two cents.