I am a convert
Ben, I've crossed to the Dark Side. I finally gave in, and am now playing Crusader Rex on Vassal. Not PBEM, but live. It is simply GREAT. I am really really surprised at how good it all looks and how easy it is to use.
Plus.... Couldn't finish our session today, so we saved it. Tomorrow we are continuing..... SAVE and Continue is actually an option! Oh the possibilities... Lock and Load, Hammer of the Scots, ASL, Bonaparte a marengo, etc etc etc