Is Stadia early in the market? I already said that Nvidia, Sony, and a plethora of other cloud gaming services already exist and have been given a good deal of attention to make them work. The reason Google is excited is because the market this is aimed towards are people under the age of 20 who have access to their parents credit cards and see the Stadia button next to their favorite YouTuber who's playing a game. Google has a good amount of knowledge of how effective this is in the mobile market where children often get a hold of their parents credit cards and spend what seems like endless amounts of money. But this is also why Blizzard asked the all important question, "Don't you all have phones"? Both Google and Blizzard are aiming at a market that depends on underage people steeling their parents credit cards.
Google was ahead with this technology but now they seem behind and doing nothing with it.
Except they stopped expanding it and are even pulling out of certain cities.
Playstation Now
Geforce Now
Parsec
Playkey.net
Paperspace
Vortex
Liquidsky
Simplay
And yes, Shadow.
What market? Who wants this? Everyone from every forum and YouTube video I've ever seen agrees that cloud gaming is not for them. I'll quote you in 2 years and 10 years when nobody is interested in cloud gaming. As much as people want to harp on the data bandwidth, that isn't the main issue. The main issue is latency and that requires Google to break the laws of physics. In fact, here's a list of issues that cloud gaming will never fix.
#1 Latency
#2 ISP bandwidth restrictions
#3 Ownership rights to said games.
#4 Loss of image quality due to compression. You thought you're getting a high end PC for $10/month right?
#5
No mods
#6 Limited choice of where to buy games, and therefore higher prices.
#7 No Net Neutrality, so expect some ISP's to throttle that Stadia connection.
That's the stuff I can come up with at the top of my head. For what, to avoid buying a $600 PC or buying a Playstation 4 for like $250? I can find used PS4's for $180 off Ebay, which is like a tiny bit more than the Stadia's $130 required starter pack. Plus you can buy used games to save some money.