Here is an interesting way to compare the VFR to Supersport. Spend the same bucks on each.
Price's would vary country to country, but here in Australia, for the price they want for the basic Super Sport, I can buy a VFR and;
- Akrapovic slip on.
- Quick shifter.
- Lithium ion battery.
- OEM panniers, bags, locks etc.
- OEM 45 litre top box, carrier, plate, lock etc.
- Hugger, radiator guard, tank pad, levers, bar ends & handle bar spacers.
I could then take off the centre stand and the first time I pull into the petrol station when the fuel light comes on, only put 12.5l instead of 18l of fuel.
That would give the VFR an extra 3kw, no weight gain, over 100 litres hard lockable luggage, a comfier riding position and some bling/protection all for the price of the SS ready to ride out the dealer yard stock as a rock.
Track fun? Well the VFR still won't equal the SS on paper, but without the luggage the extra 3kw and -12kg approx will help narrow the gap.
And if you compare the VFR DLX to the SS erm, S, then you'd have to get into some gold plating or something to get the VFR up to that price, or pay the insurance for the next 5 years.
Or maybe buy the VFR stock and with the change, buy a second hand fireblade thou for the track. Again, prices will vary between countries, but here in Aus, I can buy a 2008-2011 CBR1000RR for the price difference between the VFR (only DLX here) and the Super Sport S ride away.
Edit.
Actually, for the price of the Super sport, I can buy the Kawasaki ZX-14. Yeah, it's heavier than the VFR or SS. But put helibars/luggage on them and they make a decent sports tourer and good luck trying to keep up with one on the road or track.