Spectre: Fads don't describe a lot of the tech that people are mentioning. A lot of them are underutilised or unappreciated products, not fads.
An example of this would be the Novint Falcon which claimed to let people feel what they were touching properly.
A product I've never heard of until now, does not have a convincing product website, and the reviews on Amazon are
suspiciously generous. Also, it's price is 200-300 bucks. I looked up videos, and I'm having to wonder why people who would put down hard cash for big gaming rigs and silly chairs haven't even heard of this or don't have one. So either their marketing is shit (wouldn't surprise me) or this product is simply too expensive for the niche it's trying to fill. It could also be simply that if this is a revolutionary product, their early version is not the one to buy.
For example, why haven't Logitech, Steelseries, or other companies come out of the woodwork to make a better, more streamlined version of it? That massive ball won't fit on my desk but an 8bitdo gamepad will. Why haven't the major console manufactures commented, "We'd really like to put that in our next controller!"