Whatever the artform, history matters. There'll always be collectors and admirers, making taut little gestures from the back of Christie's, dropping a lot of money, just for the chance to own a little piece of history.
Leather-bound books to sit gathering dust on the shelf. Exquisite Sumerian beer mats. Glorious oil paintings of slightly constipated Medieval women.
Theoretically, it should be the same for games. In practice, games present something of a problem. The industry moves so quickly, the cruelest thing you can do to most classic games is actually play them, breaking the rose-tinted glasses.