PP> www.wikipedia.org ends up as not particularly useful to anyone, and hard PP> to make non-ugly. Thus not much of a benefit, and we have to weigh PP> against the "broken" links to www.wikipedia.org that have built up over PP> the years.
Unlike Amazon, other languages are not just foreign divisions of the American company, but Wikipedia is an attempt at making a real multilanguage encyclopedia. Are you saying that Wikipedia should be US-centric?