I too have been on the hunt for some AP-15s. And just like some of you, decided too late to bite the bullet on the few remaining places that had them but would have ended up costing me far more than normal because of the shipping to the US or inflated pricing.
I have been wholly impressed with the performance of the bunch I already have in use. I would have bought boxes full last year had I known this was going to happen.
If these are indeed gone, is there anything else out there that comes even close to the CFM/Noise/Static Pressure performance of the 15s?