Saw this thread and it made me instantly curious...
So I headed to my LGS, about 20 min drive, and low-n-behold...they still had several 25 round magazines for the 15-22. I bought two for the amazingly high cost of $22.99.
Perhaps I got ripped off by a few dollars (sarcasm), but I believe in supporting the brick and motor LGS whenever I can.
I do realize that once inventory needs restocking, prices might jump significantly. But Ebay is one of those places where bidders get into this "by God I just gotta have that" bidding frenzy; and prices are sometimes simply insane! Anyway, there are still a few here in central VA.
Regards, Mike