True. Another thing many don't realize is we have never truly seen the effects on a society in complete communist decay.
The United States has always been so wealthy and so successful we have helped to prop up this societies in various ways. Either through direct aid (North Korea), indirect aid (Soviet Union wheat buying, etc.) buying their exports (Europe), allowing them to not have to have the military expenses they should by living under our umbrella of protection (Europe, Canada), etc.