I feel like a Yuletide Calendar that went all the way to the end of the event (like we have for Fusions) would go a long way toward eliminating player frustration in an event like this. Honestly, the hardest part about an event like this is that you can't plan.. A really fun part of the game for me is planning a path to improve my account. (I actually laughed out loud when I saw the Plarium Play calendar and realized it doesn't actually go into the future!) Really awesome use of developer time there!