Buy 1 PS4.
Buy 2 or 3 Vita TV's.
Play PSVita, PSN, and PS4 games anywhere in your home on any TV, as well as stream Hulu, Netflix, ect. Chromecast doesnt come to Canada so this is big for me.
You go on a trip where you would normally bring your PS4. You now just toss this tiny box and a DS3 in your bag and can use it anywhere with a tv and an internet connection.
Down the line when Gaikai is introduced, this thing potentially becomes a $99.99 digital PS3.
It doesnt replace Vita, it compliments it. It just offers more options. So although it may not be for you, this thing could be a very popular device if marketed correctly. And more importantly, works as advertised.
I personally dont see a benefit for Kinect 2.0 in how I play games. I dont need voice recognition or motion controls, ect. However, somebody, somewhere may come up with a killer game or application that may sell me on it. So even though it is not for me, I can't deny it's potential. The technology is impressive, I just havent found interest in how its currently applied.