I have done some research, the B-King seems to be a gas guzzler and the Busa funny enough, quite economical, even in city commuting (16km/L) if the sites I got this from are accurate (owner reviews).
Agreed, much more power than you practically need, but then again, motorcycling (for most of us), isn't a 100% practical past time.
Sure we commute, because its more practical, faster in traffic, no problems parking, etc., but even so, there's a element of fun about it. If it was a 100% practical consideration, we'd all be riding around on 250's
As I said, I basically had my mind made up on a 2008 GSXR 1000, as I would like to experience a 1L sports bike and something that's excellent at canyon carving. This Busa has thrown a cat amongst the pigeons so to speak (I know, chalk and cheese and all that).
It did feel a little weird cornering, I put that down to me being used to naked bikes only. I agree that it couldn't keep up with a lot of bikes in the corners, all else being equal.
These bikes are awesome. The truck loads of torque makes it a pleasere to ride. Very smooth, but still exiting.
They do seem to have a bit of an idiot owner stigma about them, which is unfortunate. You know, the type of vehicle knuckle heads would buy (be it car or bike) after they have seen it in a magazine, heard about it, just because its the fastest, most powerfull, etc., regardless of their experience or needs.