Yep, I agree! But still, there is a question of cost/effectivity ratio (or how is it called, english is not my native language so be patient :-) ) which matters. So I think that U.S. and Russian went through the way of vectoring because a) U.S. can afford it b ) Russia can't stand to be behind and they really can do wonders with least sources. The other countries just chose the golden middle path to get as much as possible from Flight Control System software improvement as well as improvement of target acquisition systems and other important matters like advanced weapons. The question might be