Hmm well you're probably the expert here. I'm just speculating but of course I hope my theory is true. I know if I had the money i'd spend on the accesories that I would consider to be worth it.
I just came up with an idea. Since spiral knights is published by SEGA, why don't they add some SEGA referenced accesories? Would be really awesome!!
Accesories are more attractive to a large croud then u think.
Here's a secret to the Crystal Energy market... If the price doesn't move down within the first few hours of an update, it is not likely to drop at all. The prices aren't moving because there's no massive demand for Crystal Energy and there's no massive demand for Crowns. So no, no one has looked at it that way because it's not going to happen.