That's what, ~4-5 years of gaming on a superior GPU without the headaches of hardware failures or upfront cost of 1000$?
Yikes Valve. The only folks buying gaming PCs these days are people eeking out an advantage in competitive 3D shooters or folks unaware of how far cloud gaming has come.
I couldn't imagine playing a game by streaming inputs to a server 30ms away, which then streams those inputs another 30ms to the game server, and then having that round trip.
60ms screen delay and 120ms total delay.
One more data point - you're getting 1080p medium settings (for latest games) with a Steam Machine at ~1000$ upfront vs 4k max settings but 20-50ms added latency (for most people) for ~20$/mo without any longterm commitment.
That's where we're at. I'm in the 2000$ upfront to get max settings, minimal latency camp myself but I consider that to be a niche, luxury purchase category.
It's like how someone can play League of Legends at 80 ping for years, but once you're down to like 10 once you can't really go back.