To whom this may concern:
This is a formal rant from me, Franker (Ingame name, flame me if you wish).
The current costs of energy to crafting needs, IS ABSURD. 5 star items, which are absolutely necessary in order to access 'end-game content' are completely overpriced, yet highly coveted. Not in the respect that the gear = survivability, but in the respect you can't gain access unless you are equipped in all 5 star gear.
My gripe with this situation? This is copy and pasted; directly from the FAQs section, when purchasing energy via Spiral Knights website.