Has anyone else noticed how the asking prices of the AC556 has shot up in the past couple of months? Gunbroker and Spiwak are asking well above 10K for a used condition one and higher for a NIB. 2 months ago I shopped around and bought an unfired AC556 blue folder short barrel for $8400. The asking prices now are in the 12K range. What happened? And yes, I'm very glad I bought when I did.