Forking this over from the
https://www.enworld.org/threads/manual-of-the-planes-for-5e-on-dmsguild.700597/ thread where this sidebar is taking away from the excellent work those folks are doing.
Something that was said in that thread caught my eye:
See, this is how I feel about it. I was doing a bit of a nostalgia dive into my 3e books collection and I realized pretty quickly how much I do not want those kinds of books anymore. I've got, for example, pretty much the entire run of Scarred Lands. LOVED the setting. ADORED it. Reading it now? Zero interest in running it because I realize that despite having all this lore and background and whatnot, any campaign I build in Scarred Lands is going to be me pretty much home brewing 100% of the campaign. Sure, it will draw on various Scarred Lands ideas, but, since there are almost no actual, practical, usable elements in the books (other than monsters I suppose), I'm stuck writing 99% of everything myself.
I have neither the time, inclination or frankly, skill to do that. I really don't. I freely admit that. I don't want books of setting material. Setting material books are completely useless to me. Don't tell me that there is a thieves guild operating in this city. Instead, give me two or three short adventures plus a half dozen sidebar adventures using that thieves guild. Sure, that means I get less background material for the city. I get that. There is a limit on page count after all. But, that adventure location with NPC's, maps, and actual adventures is something I can use RIGHT NOW. It doesn't mean that I have to take the pages of setting material and then incorporate it into whatever adventure I happen to bake. And, even better, I can use that material as a skeleton framework to build and scaffold a larger adventure onto.
I do not want setting books. I truly hope that WotC continues to produce books that are practical for running the game, rather than books that are meant to be read. I don't need books to read. I HAVE books to read. I want books to use.
It's why I actually really like the Spelljammer set. Almost zero lore, but, a whole adventure path that I can mine for use in my own game. Fantastic. My current adventure is borrowing the Lizard Folk lair from Ghosts of Saltmarsh, used one of the mine levels from Dungeon of the Mad Mage and will likely borrow from Shattered Obelisk and Light of X pretty soon. Being able to mix and match and borrow and steal from adventures to build a coherent larger adventure is the primary purpose that I buy books.
So, finally, after decades of being told that nope, D&D books should be these lore tomes building massive libraries of material - what we got for most of 2e, 3e and 4e - I'm FINALLY dead square in the middle of WotC's target audience. Please excuse me for being really happy about that.