If he buys Hasbro, just remember you don't need to buy new D&D books to enjoy dnd . You can literally take a module from any other game, swap out the bad guys for something level-appropraite from your Monster Manual, and run it. Just make sure you have the PHYSICAL BOOKS of an edition you like and party on. The day after someone you can't stand buys the rights, never buy another book from that company.