I'm sure that quite a few people in the game are unable to buy crystal energy due to various things. What really bugs me about the game (and I'm sure someone has made a topic like this one before) is the fact that once you have used up all of your mist energy (which takes QUITE some time to gather) its rather 1.Stop playing and find something else to do 2.Trade with people Etc, Etc, Etc. I'm pretty sure that the MAIN idea of Spiral Knights is to go down to the clockworks, and come back up with credits, crafting materials, and your items (which have gained a lot of heat).