You keep saying that but I disagree with you. Anyone who rides any distance riding would prefer a literbike just so your engine isn't spinning at 10k+ rpm for hours at a time. Those who commute on the highways usually prefer a larger engine a well
As far as those bikes being derivative of "cheaper" bikes, you are somewhat right. The active damping suspension in the HP4 is leaps and bounds beyond anything ont he road and is the future of motorcycling suspension. The Panigale R is a ½ away from the race only Panigale and about 1½ steps away from the $15k model
My bike is far from the size or power of a liter bike, but it cruises on the highway between 4-6K all day. Plus race ergos + commute = does not compute. Not to mention those bikes are geared all crazy for the track and not the street. I can get something like a Ninja 1000 or even a Hayabusa for the daily grind, but the case for an ass-toasting low end burping ergo pretzel Panigale being a great street bike is pretty weak.
HP4 is reasonable, I think. Isn't it like $20K? High but reasonable for a derivative of a mainstream model. For Superleggera money I would want a MotoGP bike for the street, not a blinged out $15K Panigale. JMO