Talk:Storage Tower/@comment-25175720-20150513210530/@comment-6613158-20150514071827

But you can always buy the Event Currency for real money as well. What's the difference between buying Star Dust or Gems?

I've done one or two of these events not even trying to maximize the daily take. After a few days it's easy to calculate whatever you will collect during the entire event and as such it's easy to know how much you need to buy. You do this whenever it's a Double Day and you're good to go.