haha I completely understand you... it was my second time at Agritechnica, and to be honest I lost interest in local farm shows.  Yeah it's nice, but nothing can compare.  However I think Agritechnica reached the limits in terms of size.  Most buildings on site are occupied, and it is getting close to the point where you need at least 4-5 days to go around, which most people can't really do.  Plus even Hannover is not used to having this many visitors.  Agritechnica is now the biggest event held at Messegelände Hannover, well ahead of CeBit and Hannover Messe.