I picked it up at a nearby shop for $80. Great sound, really nice package. I used to own Nidhamu and Nature's God, but neither were in the greatest of condition and I sold them ages ago. Honestly, I'm happy with the box set. For what it's worth, the shop I bought it from was taking appointments at 9AM so I was one of three people at the opening, and we cleaned them out of Ra boxes. I think it must have sold very well yesterday.
An addendum to the Cairo Free Jazz Ensemble, I think that Holidays did an excellent job with that reissue as well; my opinion stands now as I guess it did when I owned an original: the first side is quite interesting, but the second side is (to my ears) rather boring. Better to learn that for $25 than $500 !