Some of these have been brought up before, and some new. This is a lost of perk ideas for Premium Membership.
1. 10% - 25%: Discount on all stations, buildings, all expansions and vehicles.
2. Daily Bonus: For every time a premium player logs in consecutively they can get either 10 Coins or 25K Credits or different amount. It would make the player to want to play more often.
3. Special Coin Sales during Holidays or Special Events
4. Unlimited FREE station moves
5. Players under rank of Captain can access Rescue Engine and Quint. (This one may get some negative feedback as this kills the purpose of the ranking system and buying with coins) But! The player would be paying monthly to have premium membership to have this feature.
Again this wouldn't be for all players just those who buy Premium Membership.
Thanks