User blog comment:Zamphyr/Small village for now/@comment-5695096-20121117232319

I was lucky enough to get enough crystals through the starter challenges and the weekly challenges to be able to get the crystal bank when it came out in April (only 99 crystals). Since then, I've just accumulated them and have only spent crystals on my tranquil tundra. In August, I had enough for one crystal alchemy store. Doing the math, it wasn't hard to figure that I was going to get my crystals worth. Then in October, I had enough (barely) for the mansion. Again, the math really helped the decision there.

Part of the reason I think I can spend all my crystals now is because I know that I will still be able to accumulate 5/day until January. I should be able to get over a hundred before the store no longer works, enough for another crystal bank. If I'm lucky (or unlucky as the case may be), I will have enough for a crystal producer at Christmas if they come out with one at that time.