An additional piece of feedback I'd like to give is for the special event items/currency to not disappear at the event's end, but rather stay in your inventory, so you have some for the next year. I see no added benefit of them disappearing, other than causing frustration and making the effort of obtaining them completely obsolete. Even if you don't have enough to buy a new item, before the event ends, or you already have everything and have no need to buy another item, it feels like a huge waste to just let them vanish.