I was just looking at the chart for historical halvings, and noticed that the last having literally happened right before our meteoric rise to $1100. That's when the block reward went from 50 to 25. Is that coincidental?
It actually went up above $1,200 but most of that can be attributed to the fat latte drinking asshole at MtGox and his famous price cheating bots, Willy and Markus.