It would be really cool if we could use accrued points or "in game currency" to unlock different additions. Maybe like different kinds of cars for consists, that could also come with a specific set of services, where some DLC's lack them. Or, as one person suggested adding a train museum... This would be a cool way to collect displays, even if they're not playable. This would make it fun to be able to collect various locos/cars throughout rail history. Or, in the least, to be able to use points to purchase different dioramas.