Morkus from Orkus
1. New players don't necessarily have access to those books.I’ve got twenty or so 3e books, covering large swathes of the realms and another thirty or so 2nd Ed books covering the rest. I’m not sure why on earth I would need 5e to reprint it all over again.
There is more Forgotten Realms (including Maztica, Al Quadim, and Kara Tur) for any 10 settings. What is there that needs salvaging???
2. When new editions happen, time advances and the changes should be printed for more than 1/225th of the world.