Comment by CodeDiver

Good point. From a niche advertiser's point of view, this is better than regular TV. TV shows have product placement, but rarely revolve entirely around a product. But every "Let's Play" on Twitch is, on one level, an extended, entertaining commercial e.g. an infomercial. Which would make Twitch a massively interactive 24/7 infomercial, like QVC for gamers. To the eyes of Amazon, the internet's store for everything, that must be very attractive. It also raises the question of whether you could have a Twitch for other categories i.e. a 24/7 niche infomercial network that people actually want to watch.