I might do it 50%, or less, of the time. It's a lot of bother for nothing, in my opinion. I do throw the quilt up and smooth out the major wrinkles, but to make the bed with tedious effort is not worth the time to me. I would never be a candidate for "Ms Homemaker."
I have to add that, if it were a smaller bed and only I slept in it, I'd probably make it up as a habit. But, making a king, which is on the high side, is a pain.