Oh, there are PLENTY of reasons to slam HD. Yes, Erik gave us the XB under HD, and for me it is the perfect street bike, but just think of what he could have made under a company that understands sport bikes.
"Had Buell not existed, what would you be riding?"
That is a good question. The sport bike "seed" I got was from sitting on a Buell at HD dealership, back in '01 (specifically, a blue race stripe X1 with the side pods painted blue). While I owned a VRod, I took a co-worker's '96 CBR900RR (or whatever, it was purple and yellow) for a ride, and fell in love. The following year, my local dealer had a CityX on the floor. I got my VRod sold and bought it, almost as an impulse, and to get away from forward controls (instead of getting used to them, I was hating them more and more).
So, had the first seeds of a sport bike not been planted, I still had that ride of my co-workers, and I probably would have sold the VRod and bought a Honda CBR600.