Seriously, folks. They aren't quite as bad as you guys are making it sound. And this is ME saying this. ME. DOCTOR-TEN-REASONS-WHY-INSERT-UPDATE-HERE-SUCKS-SPACEBAR.
The Fire Crystals are inducing a huge amount of panic because "OMG HEATING TAKES TOO LONG". Here's some news for you. One, Fire Crystals drop so much on Elite difficulty, it's not even funny- you should have no trouble using at least 2x Crystals. Two, using more crystals can give you a chance to skip an entire level's worth of heating and Fire Crystal payments.
I'm more worried about Three Rings making money on energy! In a few hours of playing, I've acquired three Eternal Orbs of Alchemy- enough to create a five star weapon! Still, they've got things like Lockboxes, Shadow Lairs, Trinket Slots, and such.
One problem people may have is that Firestorm Citadel is no longer as great as it was for heating items. GOOD. Boss missions were/are run too often anyway.
I've also got a question. Has anyone gotten a Forge Prize Box? What's in them? And do you need a Key to open them?
The last few levels do take forever. I need like 90 for a 100% guaranteed upgrade.