Caeden, one advantage I see consoles like this having over traditional consoles is that, unlike a Playstation or XBOX, software does not need to be made specifically for these consoles continually. MS and Sony have had to put in significant investments developing and promoting and personally programming for their platforms in order to get software on them one way or another and, in doing so, further sales. If they didn't foot a huge initial bill, they would just be boxes with no software. Sony and MS have to make, promote, and further their own ecosystems from scratch - Android consoles, not at all.
These Android consoles, on the other hand, could have ten people buy them total and still have hundreds of games with more in the pipeline at any given time. I doubt the companies making these expect them to be extremely popular - but since they are piggybacking off of an existing gaming ecosystem rather than trying to create their own from scratch, they can offer a product that will have support with low initial investment and as such expect far lower returns while still making a product.
Niche product, in my eyes, and I doubt the companies making them think otherwise.