Earlier quoted context omitted.
The major reason is they are a private company with good business. The don't have a need to keep adding to shareholder value ie stock price instead just need to generate a yearly income. We have reached a point where the shareholders are a companies real customers and that is who they all try to attract.Everytthing else a company does is just to attract shareholders
I'm not really a fan of this reasoning when in the same breath: Epic is also a private company but has its share of stuff. It's done some good stuff for the industry and even contributed to some bit FOSS projects. But business is still business.
They seem to have a high ownership, consensus driven organizational structure. The only time I'm aware the consensus model was violated was when Gabe overruled a veto to ship Steam with half life 2.
It's very interesting to me because it seems to operate similarly to a lot of anarchist shit I've been involved in, but at a highly effective level. And they make oodles of money.