i have yet to see an nvidia shield in the wild. it's like the fabled 3 legged unicorn.
It's the device made for nobody that nobody wants, so nobody buys. Why would I want to stream my games to a handheld device with a tiny screen that I can only use while I'm at home requiring the use of the PC that has the game on it in the first place?
If I'm going to focus on gaming and I'm at home, why not use my PC? Sure, I could TRY to stream games over the internet at what - the coffee shop? Yeah, because they always have ultrafast 40Mb/s connections that allow for streaming 1080p games, right?
Or maybe I could use it to play Android games - you know the ones made for TOUCH screens? Which I would only own if I ALREADY have an Android phone which also has a bigger screen (Galaxy phones have a larger, better AMOLED display than the Shield).
This is a product with absolutely no target consumer base because the consumer who needs this doesn't exist.
A tablet that does the same thing would be nearly as pointless.