General conclusion reached in Japan, sheer luck, no CP involved. I didn't say this on my youtube clip, but at the beginning of the event, chance of admin card drop was set too high, and they were going for about 200k for the first two days. Then, the emergency patch came along. The drop rate went down to where you guys are experiencing right now, and the price went from 1M to about 4M on the last week of the event.
As for link to my clip, I'll pass. someone put one up in one of the SAO thread already :-)