Well I guess none of those things are important to me at all. And you keep saying it is the same price when the main point I was making was that you could have had the game for cheaper somewhere else.They're getting Big Picture mode, Steam play history logging, trading cards, ability to make Steam screenshots, Steam's greater reputation for reliability, security, and consumer-considerate company behaviour. And family-sharing and a bunch of other stuff they may or may-not use. They also get a more patched version of the game since it is releasing a month later.
Overall, there's quite a large benefit package to getting a game on Steam as opposed to another platform, and it's all free.
A person could also pay the same price for a meal in a dingy, smelly restaurant run by thugs who don't appreciate their customers as they could in a beautiful restaurant with good service and free deserts. Which would you choose to spend the same money at?