Next to the last release of high-tech game, one can find on the AppStore some games from another era. Most user will purchase them by nostalgia. This is typically the case for "Duke Nuken" (very difficult to play on the iPhone) and more recently for "Doom".
This could be the support for some lesson to your kids, "look at the famous game daddy was playing when he was a kid like you": 5.49 Euro on the AppStore
