The Free Market and Science Fiction

Science fiction has a love affair with the free market, particularly libertarian sci-fi. One needs only read the numerous speeches (I'm tempted to say diatribes) of Johnny Rico's military instructors, to realize this (see Starship Troopers). The love of free markets can also be seen in Pournelle, Larry Niven, and other libertarian authors from the 70's and 80's, as well as the borderline sci-fi of Ayn Rand (Anthem and Atlas Shrugged). It is interesting therefore to note how the genre itself has become an increasingly monopolistic enterprise, with a small number of authors and publishers dominating the field. New blood is often hard to find, unlike in the fifties and sixties, thus slowing innovation, as older authors are preferred, even when their works have begun to lose relevance. Don't get me wrong, I like Asimov and Clarke as much as the other guy does, but I would like to see some more risk-taking being done in the science fiction genre. I'd also like to see more novels that avoid the socialist\libertarian binary for other scenario's, such as Ian Banks post-scarcity economic scenarios. But tell me what you think.