Ok here's the skinny on tickets: In your guest you now have more options on how to lock it they are:
Everyone - the default, anyone can enter.
Myself - a room only you can enter! (Finally peace and quiet when building a new room or ride. )
Friends - Allows yourself and any player on your friends list to enter (replaces freinds only option.)
People with tickets - ok this is where it gets interesting. Only the room owner can generate a ticket for his or her rooms, they will set you back 10 cr each and can be set to expire in 1, 3, 7, or 30 days. Each ticket is represented as a pin which you can trade (afraid there is no sell to other players option as of yet. (I guess they saw the huge abuse potential there) To use the "ticket" the player must wear the ticket pin to enter your room.
Ok maybee I'm just jaded but am I the only one who sees the potential abuse of someone trading the ticket promising access to someplace "really cool" in return for valueable items and then not honoring the tickets?
Oh yes, the room queue screen has changed to show how many players are in a room and in queue to access the room it also displays a tent shaped icon if a ticket is required for entry.