Slowpoke --
I bought a Buell Firebolt last Fall and haven't looked back. Completely reliable and the most fun I've EVER had on two wheels.
It's funny to hear them ripped by Guzzi devotees, as the bikes are somewhat similar -- air-cooled pushrod 90 degree V-twins. The similarity ends there, though.
Throttle response is INSTANTANEOUS. Parts are CHEAP. Handling is extraordinary.
Buell has got it right. Nogbad just bought one, and several other Guzzisti find them quite alluring.
You simply cannot go to the Buell website -- listen to Erik talk about his design philosophies -- and not be impressed. Get on one and you'll be equally impressed.
The Guzzi is heavier, but, in my opinion, a much SEXIER bike. I work in the film business with a lot of "artsy" non-motorcyclists, and -- to a man -- they all prefer the Guzzi to my Buell. Looks-wise, I agree with them -- the Guzzi has "it."
Believe it or not, the Guzzi has a revvier motor -- lighter flywheel -- and feels a tad more civilized.
All my friends who ride, however, are blown away by the Buell.
In short, I think I'll keep both. If I could keep only one, I would probably (sadly) lose the Guzzi.
Luckily, that is a decision I will not have to make.