I understand your aversion to communism, and I agree that robots will be creating a scaricity free society; However that isn't the major problem we face, our biggest challenge will actually be of the mind, apathy.
When there are no jobs, and no need for money, there is not much need to work or do anything as robots will do everything we want them to do. I can easily forsee a two-race future of humans, one that has embraced cybernetics/genetic enhancement to keep pace with the skill level of robots themselves, and a race of degenerated humans who after years of apathy and brainlessness have turned back into apes
There is no place for robots in competition between humans (if only as targets or weapons, see Real Steel), so we can always turn to something like gladiator fights, super bowls or whatever...