I'm thinking that back in 2007, the class was growing/expanding with several new designs coming to market?
And maybe there was some extra buzz with the Alter Cup being sailed on a F16, and the US Economy had not fully hit bottom (has it yet?) or at least not gone as low as it is today, so perhaps there was more interest from more people, (people with jobs), than there is in 2011?
And on the European Championship input...well...most of the people on this board are in the US...?