All the same reasons I love my Duc 900 supersport. The SV650s is pretty much a copy of the Duc, but with Japanese reliability and a water-cooled engine. The Duc has a little more power and better suspension, but with some upgrades on the SV they're pretty comparable.
I don't think it's much like a 900ss other than the twin.... its got an aluminum frame, significant ergonomic differences.... at least a hundred pounds?
I just got done doing some significant work to my gf's bike including a front end swap, paint and engine work. It runs like a top but remains a work-in-progress (no speedometer! - on our recent trip to Cape Breton I went 1940 miles, she went 0 miles...

)



You really can toss these things around too - especially one with properly set up suspension. Once I put a 636 rear shock on this there's no doubt in my mind that I'll be able to lace through a set of 2nd gear twisties faster than I can on my fireblade.