Yeah, I get more miles out of a tank than on 'regular' unleaded to the point where my cost/mile is actually slightly lower. And it gives me more power through additional detergent action
AND you can put it in a racing car and be detonation free at all times without bothering with octane booster - win win 
AND you can put it in a racing car and be detonation free at all times without bothering with octane booster - win win 


and to potentially have the possibility to say that you whooped him at karting 'be an LFS legend.....'