As a suggestion SBS might want to put a notification box on the store page to display any on-going store campaigns. A short and sweet notice like: "Buy promotional items each week of the currently ongoing KSversary and get unique ingredients and a recipe! We're now on Week X" wouldn't made people buy less. Similarly a notice like "3000 EP and Gift Cards are going away by the [date], grab them before they're gone!" are also crucial shopping information that could be displayed there.
I know that the devs have taken note of how many people are following CoE's development way more closely than what is normal for most other games under development, however, don't forget about those who have a more normal approach to a game under construction, not everyone will be that intimately on top of things during this time.