Tubulars are still preferred for track racing, since they can be run at much higher pressures, even well over 200 psi, but most road racers now use clinchers. I still have tubulars on about half of my wheels, and still ride them regularly on the road. The last time I had a tubular flat on the road was close to 10 years ago. Tubulars are immune to pinch flats, which is the cause of many flats with clinchers, and are much safer in the event of a sudden flat, since they stay on the rim making it easier to control the bicycle. They are also great for cyclocross, since the tires can be run at very low pressures as well. Until you have ridden a bike with a premium quality silk casing tubular, you have not experienced the ultimate in ride quality and performance.