you get tubulars for racing nowadays, or if you are redoing a classic bike. while they have slightly higher rolling resistance, the reason one may desire them nowadays is because of their ability to not get a pinch flat (ability to ride with lower psi... or higher if desired) and because they are way lighter. ( i have 2 almost identical wheelsets- 1 tubular, 1 clincher- and after the weight of the tires etc etc the tubular wheelset shaves nearly 1lb from my bike, and the tubular set has 4 more spokes too!)