Doesn't seem long IMO. I know for the Spizikes they were rotating the materials pretty often.
If you have something in mind now with the materials available, its best to buy now and not wait.
Haha... a pair of AJ retros = 2 inches of ankle height and a strap on an AF1. yeah riiiiight
Like I said, I'm not justifying... But GR highs are about 20% more than GR lows... so $1000 is about 20% more than $820.