I currently have 2 road bikes, a Dean titanium with the more aggressive geometry and my "old" (1990)c-dale aluminum sports tourer with a longer wheelbase and shallower angles. I typically ride the Dean and leave the c-dale leaning up against the dining room table. This year, however, I find myself riding the c-dale a bit more and rediscovering how comfortable it is to ride. I use the same tires (25-Bontrager hard cases) on both bikes but find that the ride on the older bike is a lot smoother. I know that we've discussed this before but it, at least to me, provides real world evidence at how significant bike geometry really is.