Currently the forge and radiant fire crystals are what OOO has implemented to stop players progressing through the game at break neck speeds, but are also hated by a large amount of the community.
At first I though "Why not make fire crystals more reasonably priced so that people would actually buy them?" But then people can simply buy through the game once more and so would have defeated the purpose of implementing them and orbs to start with.
But then I thought about it once more, and what is a major annoyance to most people is the reliance on a RNG to get your crystals (because they cost so much on the depot this is not viable as an option).
So why rely on chance. If radiant crystals were more reasonably priced BUT you could only buy a small amount at a time people wouldn't be able to buy through the game in a day and OOO would finally have a CE sink.
Suggestion: Let Kozma sell 20 crystals at a time at the core at a discounted price (50CE (perhaps more); this way fully heating a 5* item costs about 1100CE. And people pay slowly over time which is currently one of the other big problems with the overpriced radiants on the depot now) available ONLY at the core, not available in missions (revive the arcade what) and like basil you can only buy this once per run.
Basil used to be the only place to buy recipes so certain depth vendors are not something new.
I'd love to see this implemented, but it won't be. Anyway what do other people think of this?