A question for our community

As the Lift10 price will soon increase for the final month before the conference, should we display the older and cheaper prices in the tickets list despite the fact they are no longer available?

Pros: one can fully understand our pricing policy, and register earlier next year if needed.
Cons: this could create some frustration when you see the tickets were 550chf and are now 850/1250.

What do you guys recommend we do? We really need your input please let us know using the comments or by email!

More info: the Lift pricing model explained.