The geometry isn't nearly as extreme as Buell and there were plenty of folks who dogged (and still dog) Buells for being "Harleys", but I think there have been plenty of folks who have been surprised by what a Buell can do.
Adrenaline Moto did a really slick XR1200 project:
http://www.adrenalinmoto.co.uk/prods/137.html
Not everything is a super sport. Unless you are doing lots of track days, NO ONE can use all that their repli-racer has to offer on the street.
Sometimes having a bike that is spec'd for the street provides you with just that viscreal experience that a bike tuned for the track can't offer.