I it, or at least should be. The problem is with our current socioeconomic structures it would mean that the majority of the population would have no purchasing power whatsoever, since their only valuable resource, their ability to work, would disappear. Mass starvation, rioting, etc. doesn't sound too nice. If we somehow make our way out of that into a Star Trek-esque post-scarcity utopia, then yes, it'd be amazing.