This is always an interesting argument.
So, since game books are huge well-springs of entertainment...sometimes literally lasting decades and generations...why do people constantly push for and buy new game books? I mean, I bought a $20 PHB back in 1984 and it's still in good shape. It's perfectly serviceable and the game still plays well enough and I can hack it to my heart's content. So why, since I've already invested in the game, and it's an eternal source of entertainment...why on Earth would I bother buying a newer, more expensive version of the mostly similar game book?