My buddy bought one of the $400 electric milemarkers....IMO, it's nice for the price, but it's pathetically slow....even unloaded. Great for occasional/rare use, but if you need it 3-4 times a day (like me) then you'll despise it quickly. He's already planning something on the front of the rig to "figure 8" the cable rather than respool every time.
I run the 8274-50 with poly rope and absolutely love it. Prior to that, I ran a 1974 Warn Bellevue (the great-granddaddy of the 8274) Another great winch.