I think there is higher demand for them now that cycling season is here. I got mine back in March and paid retail on ebay with shipping included. Had I used BIN, I would have saved like $20, but it was one of those purchases that I wasn't 100% sure I wanted it, and ended up winning it. I still check occasionally and they are always borderline retail on ebay.
The color combo made me reconsider that Fire is such a highly functional lens, beyond the color. Its like being able to wear a ski google tint all the time, but without ski goggles.
They are totally rad! And I get so many stares when I wear them, but who cares!