Talk:Crystal Engine/@comment-25968376-20150524154401

The more I think about Crystals, the harder it is to wrap my head around it. First I wanted to make a cutoff point where it's ideal to buy 6+1 Supreme Treasure Chest sets (i.e. waiting and losing potential days vs having days with higher chance of getting S-grade, and thus Crystal-generating Treasures), but then we have to factor in that we need to expand the treasure cabinet.

To make it worse, these days I'm in a mood to collect all the treasures, which means that I probably will spend tens of thousands of Crystals to re-buy the Cookie/Pet treasures that I sold during the first two seasons when it cost 100 to expand the cabinet... ugh...