You can have a movie with hardly any cuts, or very few cuts, that is fascinating, you can't take your eyes away from it... Look at some of the long takes in Citizen Kane.
It's not like that anymore really, but back in the day, nobody would let the Misfits open up for them, not the Ramones, not the Cramps, nobody.
I start a lot more songs than I finish, because I realize when I get into them, they're no good. I don't throw them away, I just put them away, store them, get them out of sight.