Quoted By:
dynamic range, tonal quality, better by-frame iso performance (bad ISO looks better in motion picture than still photo), portability, durability, ease of use, speed of use, smaller and cheaper lenses, battery life, inconspicuous, less expensive, better raw data editing, flash, longer history of excellent design (peaked in 80s), better weather resistance per dollar, better storage and battery techniques and prices.
there's probably a bit more, but that just about covers it.