And not surprisingly, the only game that is owned by a publicly-traded company I believe. So no other games have that Sword of Damocles over them.
D&D 5E14 is actually the lone outlier as far as WotC is concerned. All the other editions (3E, 3.5, 4E, Essentials, 5E24) were all designed with the expectation and focus of making the company money. 5E14 was the only one that did not seem to have that. Which makes it kind of odd that many people seem to think that is the way D&D design is supposed to be and that 5E24's pivot was some kind of odd change. Nope. 5E14 was the odd one out. All the others were how business was meant to be run.