Well, if textile suits were better for protection and abrasion resistance, professionals would be using them, and they're not (though there is some interesting stuff being done with high-grade cordura, it's expensive and tends not breathe as well as it has to be very thick to match leather's abrasion resistance- there are also some new Kevlar fabrics being worked on that might run out to be pretty good) . While I'm very interested in good air-flow and always go for the perforated option, the number one concern is safe gear, and that makes leather the best choice. I agree that there are good (and cheaper) textile choices out there, but leather is the way to go on a sport bike, IMHO. Leather also tends to survive minor crashes way better where textile is usually done after a get-off.
I've got some textile stuff, but if I'm planning to ride hard for a few hours I wouldn't choose it- if I wanted to go on a long tour I would probably buy an Aerostich Roadcrafter suit (though it's not cheap at $900).
Also, I'm in shape and work hard to stay that way- I'm not worried about looking bad in my gear.