This value of this kind of thing depends on NFTs having value, which I would dispute. As soon as a DAO tries to buy anything in meatspace (a house, a painting, a book), you're back to an oracle problem where someone has to be trusted with the custody or upkeep of the physical item and no amount of DAO votes can force them to do something they don't want to do.
Capital formation for any common purpose without trusting 3rd parties. As an example -> there are some NFT vault DAOs where strangers pool together to purchase NFTs that are too costly. People Vote on proposals regarding which NFT to acquire and when.