I'm pretty sure fireballs formed out of attempts to grow round bead-nucleated freshies (Edisons etc). Perhaps as a result of improved techniques, less fireballs are being produced.
I don't think they are passé! I love my fireball pendant!
I don't think so. I think the price of nuked fwp might have gone up so much that reputable vendors wait for the price to go down again when supply is in abundance. Jeremy may be able to answers this question.
I don't think so ..they have certainly increased in price over the past few years . I see them in the B&M stores quite often ...usually listed as Soufflé pearls lol