Are you sure it went down to 66.6 on July 4th? From looking at bitcoincharts for that range in the minute resolution, I see it hitting that low on July 5th at 17:42 GMT, but not on the 4th. If it happened at 6:10am GMT on the 4th, which seems to be the lowest point (72) in the morning according to bitcoincharts, then that would be 6am + 10 minutes, which is 600 seconds. If so, then "what the hell?" would be right. Still, its close, especially since the domain was bought May 8th, when the price was above 110.
Back in 2002 on the 1 year anniversary of 9/11, the S&P 500 futures closed at 911.00. They made a big deal about it at the time. http://www.freerepublic.com/focus/f-news/749198/posts