The gpu needed to play games on a VR headset doesn't fit on it, thats why they plug into a computer. And for something that fits in a phone/tablet, a 64GB microsd card is $30. 64 GB on something the size of a fingernail for $30. 10 years ago a 60GB 3.5" hdd cost more than that . Storage expands and gets cheaper at a crazy fast rate.