Your telling me pinball arcade, which HAS been shot down by Valve and has had to turn to greenlight is not worthy of being on the store?
And yes, you can sell games on the internet other ways then steam, but steam is a major factor in success now days for most digital games.
I'm saying that if people aren't interested in the product then it need not be in the store.
Steam is often a factor in the financial success of a game, which is why games which have a realistic chance of selling-to and entertaining the consumer should get their fair chance at success rather than being shunted off the first couple of pages of new releases by games that aren't going to sell. Greenlight is not even a question of the quality or value of the games in question, it's purely about getting the games that people want onto the service quickly so that they can purchase them. At the moment, it seems like the primary criticism of Greenlight is "people are not voting for the games that I want," which is unfortunate for the individual but a completely irrelevant criticism of the service itself.
I suppose your right, but in some cases its hard to judge if a product will sell well.