I don't doubt sony, Microsoft and Nintendo all move to cloud gaming eventually. Traditional hardware will be dead in 10 years.

My impression is Microsoft is alot more focused on the potential of streaming, than either Sony or Nintendo are.
Sony might have something in the future, but I doubt they ll do anyway with physical hardware (which will remain the main focus).

Look I don't think it will happen tomorrow. But MS is obviously viewing games as a service. Sony has PS Now. Nintendo dropped VC titles in favor of putting classic games behind a paywall. All 3 charge for online. Question is when, not if. Hardware will be phased out at some point.

I remember when people laughed at Netflix....

I think the majority of gamers consider a game bought digitally on most online stores to be a game they own. But these same gamers won't consider a game they bought on Stadia to be a game they own. And so Stadia runs the risk of suffering from the same PR disaster that the XB1 suffered from in 2012, with their online check-ins, and $10 used game tax. Except Stadia won't be able to back out, because having to always be online is something that is welded to the service. At best Stadia could allow you to download and install your games to hardware you already own, but that would make it just another PC storefront.

Also Captainexplosion and thismeinteil are correct in saying that mobile gamers aren't the type to drop $60 on a game. They don't like or play those types of games. They play cut the rope, candy crush, or some other tetris clone. 

Super Mario Run struggled at $10. Why do you think all of the sudden mobile gamers will happily spent $60 on games to play on their smartphones? With this price, they probably won't be as big as you think for Stadia. 

I don't think game prices will be stuck at 60 bucks forever, the prices of older games will fall as the time passes.

People need to stop thiking in the short term. It is a tech the will take time to evolve and become accepted. As internet-infrastructure improve in the coming years, people will begin to accept it.

Google and MS have money to burn on it, the same way they are burning money right now on the run to get the first quantum computer.

And yet Netflix has continued to grow.  Meanwhile Oppo and Samsung have stopped making physical disk players.  Streaming is becoming the norm for TV, movies and music.  It will be the same for games.  

Stadia isn't netflix for games though.