I think it would be a good idea if we could use instance tokens/gp to purchase our own puro puro instance for 1hr-1hr30m at a time, often times there are too many irons/normals there competing over 2-3 imps. It would make the instance tokens have an extra value, plus another gp sink for the economy, the instance should stat at 7-8m then go down according to your donator level.
Maybe I'm blowing smoke with this suggestion, but I enjoy Puro and hate competing with 10 other players over 2 dragon imps.