Used to buy prebuilts exclusively (2 pairs Neutrons, 1 pair Electrons, 1 pair Nucleons, 1 pair Ksyriums, 1 pair FSA, 4 pairs Velomax, 1 pair AC350.)
Then I woke up and called Mike Garcia. I doubt I'll buy another pair of pre-builts. Too expensive, heavier, harder to fix if they fry, far, far more expensive. Why bother aside from the coolness factor?