Lowest Widget bucks Clicks I have had are 17cents and I am disapointed when I get these. The highest I have had is 43cents. These are consistent prices also, just don't get lost in the expected CPM rate of $3 - $6 - some people are exstatic about this CPM rate - it's based on Widget Impressions and not Page impressions - in my experience about 60% of page impressions are resulting in a widget impression.
I have to temper my earlier exuberance. My WB EPC has dropped to less than a third of what I was seeing when I made this statement.