So back in the Mist Energy elevator cost days of yore there was an elevator pass that essentially removed the thing that halted progression for a month: that being Mist Energy.
With the removal of ME and the introduction of the Forge, no such item exists.
So I'm suggesting something that's probably been suggested many times before, but no matter.
Forge Passes!
It'd probably cost ~$5-10 worth of energy and last for a month, and it lets you level up gear like previously, essentially the elevator pass's replacement.
Good idea? Horrible idea? What do you think?
I'd say simply bypass the fire crystal requirements or make all forging values 100%.
Perhaps it could give you something like 15 fire crystals of every type daily as well, or at least boost drop rates (or double any that you pick up).
Issue with the forge isn't really the forge, it's more the crystals involved.