I'm one of those forced to buy Q2009 by the sunsetting of Q2006, which in-turn was forced on me by the sunsetting of Q2003.
I waited until the final few days of Q2006 before installing Q2009, hoping that bug fixes would take care of the problems I have been hearing about.
It doesn't give me a whole lot of confidence, however, when I startup Q2009 and the splash screen says "Quicken 2007"!!! I have never owned or installed anything in between Q2006 and Q2009. Oh, well...