MNblockhead
A Title Much Cooler Than Anything on the Old Site
I assume Monty Martin is a creator/publisher and I can assume that the extra overhead of trying to understand and adhere to multiple licenses can be a headache for small publishers. Ultimately, though, I think it just comes down to whether an IP is popular enough. D&D depends on a large ecosystem of third‑party publishers of all sizes to keep it being the most widely played and best known TTRPG. Games Workshop has no open licenses and maintains tight control over its IP, yes Cubicle7 seems to be doing well with its exclusive licenses to publish games for the various Warhammer properties.
As a consumer and GM, how open a game's license is has never directly factored into my purchasing decisions. Indirectly, I suppose it has, for there have been games that I've initially been attracted to but just didn't have enough adventure content available. I think that it matters more for consumers who tend to stick with one game system. Even with WFRP4e, I have enough published adventure content for my current campaign to last several years. D&D with its third‑party publisher ecosystem may have enough content to last me lifetimes, but I only have one lifetime and I'm not going to spend what little I have left of this lifetime playing only one TTRPG.
As a consumer and GM, how open a game's license is has never directly factored into my purchasing decisions. Indirectly, I suppose it has, for there have been games that I've initially been attracted to but just didn't have enough adventure content available. I think that it matters more for consumers who tend to stick with one game system. Even with WFRP4e, I have enough published adventure content for my current campaign to last several years. D&D with its third‑party publisher ecosystem may have enough content to last me lifetimes, but I only have one lifetime and I'm not going to spend what little I have left of this lifetime playing only one TTRPG.