Are we forgetting the roots of the S3?
Do what you want man, be opinionated it's a free country! I really like both. With clip-ons I like the single, and with regular bars I like the double. I guess I'm just weird. Have you seen the LSL Cafed S3? If I was going to buy a 05+ S3 it would look alot like that. I first saw this bike in a German Streetfighter mag that I bought In Germany this summer when I was at the MotoGP at Sachsenring. Check it out here.
http://www.motorradonline.de/d/214309