I spent the last year tearing up Conti GP 4000s, Rubino Pros, and Michelins. Ironically, the longest lasting tire I've had that is still going strong on my bike is the $20 (retail) Conti Ultrasport that I only installed at first because I needed a quick fix until my GP4000s arrived in the mail. I'm very happy with it, and it's not too pricey.