I used rollers back in the late 70's, they are great for developing your balance and straight line skills. I am seriously considering either new rollers or a turbo trainer now, just have to overcome the boredom of staying in one place. I guess some DVD from Sufferfest are in the cards if I get one or the other. The Nashbar aluminum rollers look good and their prices are hard to beat for new or their resale from returns. I am watching eBay right now, also.
Bill