I wonder how Amazon Luna is doing?
You need to grow to a certain size of users before this becomes profittable imo.
Market just isnt big enough to support, more than maybe 2-3 big players doing this, again my opinion.
I'd put money on Playstation & Xbox, both haveing one of those slots (on the video game side).
I also imagine that Steam, could at some point enter this market, and utterly crush, any upstarts.
Its a risky investment imo, its a gamble likely to fail.
I would be surprised if amazon isn't loseing money on Luna.
The question then becomes how long will it keep doing so, before closeing up shop?