I don't understand what market drivers are pushing AutoCAD 2010 and 2011 to be the leading software for designers. Everyone is using it, and everyone is bogged down. AutoCAD 2004 is about 5 times more productive. In other words what can be done in 1 hour in AutoCAD 2004, takes about 5 hours in AutoCAD 2010. I honestly don't understand why are the moneymakers not boycotting the 2010 edition.