"This statement of yours sounds like an avowal of ideology (an ideology that's sadly all too prevalent on HN), rather than any sort of argument in favor of capitalism or against communism."
No, it's a reflection of Economics 101, really. You simply can not replicate the amount of information in a price in a centralized system, it's actually impossible.
Walk through the first few chapters of http://www.daviddfriedman.com/Academic/Price_Theory/PThy_ToC... . No, seriously, do it. The first few chapters are very basic and if you can just wave them away as "ideological" then we're done here anyhow. Prices contain a lot of information and no central authority can match it. They especially can't match it if they believe prices are a moral issue and they ignore the basis of them in the first place.
"Are you saying that "favored central government cliques" and violence aren't possible in capitalist systems? Even a superficial look at a model capitalist country like the US will reveal their presence."
First, the US is not a model capitalist country and has not been in a long time. The idea that the US is some sort of unrestricted capitalist paradise is propaganda, not fact. Second, your logic here is terrible. When I say that the only outlet for advancement is one or another form of violence in a centralized system, therefore I am claiming that in a capitalistic system it is never a form of advancement? If you're not even reading my actual points and you're willing to bend what I'm saying that hard, or you can't even see the grievous crime against logic you just committed, that's not even worth replying to.