I'M going to hate myself for opening this can of worms AGAIN, but... I'm going to agree with YONIP and say that 10,000 is NOT enough. He should get the same miles as the difference between biz first and coach on an international trip. If it costs x number more to fly biz first than coach...well then if you have to fly coach instead biz you should be compensated with the same CO would charge you.