i remember someone recently saying what if the us went to the olympics with an all rookie team: lebron, that kid from the nuggets etc,.. anyway, i would imagine the nba is a lot more profitable than risking injury playing in the olympics. forget about the whole prestige of it, it's an amateur competition, there's no money.
also, most western europeans are pretty fluent in english by 6th grade, i think language was brought up. i don't know how the former communist states are, but, growing up the european schooling system always seemed superior. so that wouldn't be a factor