I think the "first come, first serve" attitude is kind of unfair because of the time zones and all that. I mean, it's totally the host's decision and the easiest way to avoid it is to send unique stuff, but, well, I still think it's unfair because when the host in US opens the round up in the evening, I'm boarding the train to work at 6 A.M. and not in the best position to send anything; and for European hosts, it's the other way around.