What exactly is the investment required for a streaming service like that? It seems to me (who is admittedly uneducated on this matter) that the costs would be a drop in the bucket for a company like google. They presumably already have a lot of the infrastructure, and there is no actual hardware beyond the controllers to manufacture. I'm guessing they could pretty easily survive a slow take off. If anything, I would say this is a soft launch for stadia. It's hard to market it when so many people already have a PS4 or XBox One and both systems are only 130 dollars more expensive than the stadia controller alone (although it works with other controllers I think). The real push for it will come when the next next gen consoles are launched. Suddenly when playing next gen games costs at least 400 dollars, the stadia becomes a way more attractive option.
How so? Most people who invest a lot in videogames would rather get updated pieces of hardware, either console or PC, just because they want to play without risks of poor streaming performance, and they would be much better informed of the risks of this kind of service (not to mention having access to other gaming streaming-like services). People who don't really care about videogames won't invest heavily in Stadia either because you still have to buy your games either way, so they would either keep themselves to outdated hardware and/or just straight FTP mobile games. Stadia is aiming for an almost non-existant crowd.
You know it deserves the GOTY.