Well, money and prices are a representation of time, which is valuable. In a freer-market, this value is shown in prices. You can try to remove said prices and think that people have been liberated from the "slavery of the freer-market." However, it doesn't change the fact that the poor bastard slaving away to make everyone a free Maserati is sacrificing his or her time too, and now they can't even keep track of the disparity of which they suffer under communism, because there is no metric by which to gauge the differential.