Go ahead, Find me a car with a Clutch that bathes in it's own Motor oil... That Rev's to 10K on a regular basis, that is saddled with consistantly too small of radiators, or that generally displace more HP per Litre than anything on the planet... New Litre bikes are easy to figure out...150HP/Litre... Not much in the automotive world even comes close. Those that do, specificaly Ferarri, Porsche...etc Come with extremely exotic Synthetic oils allready inside... Now why would the Factory do that? $25+ a Litre for the specific oils being used in many of todays higher performance motors.
This discussion of car oils in Bikes has been going on for years. The two links above aren't going to convince me one way or another. What did convince me was a test Sport Rider did a few months back with synthetics and Dino Oils tested back to back with an Automotive oil thrown in for good measure. The Dino's were all about the same, However the Quality synthetics (Quality) performed much better in the areas that matter most, Viscosity retention (Ability to stay in grade), and resistance to heat. All the Synthetics outperformed the Dino Oil's.
But if based on the two links you posted your ready to go ahead and throw Freaking K-Mart oil into your ride go for it! But to label Motorcycle Oil a scam? Hardley, especially if we are talking something other than "Honda" oil...
If saving money is a concern then I would recommend just selling the Busa, buying a Celica or something similar and then running Automotive Oil.
Oh and Yeah, Buy A Premium Full Ester Based Synthetic Motor Oil for your next oil change, I dig Silkolene Pro-4 10W-40... Anyway put that Sh!t in your bike, ride for 30 minutes and then tell me that Bike oil is a scam... You will be amazed....