Eh - the 'last-minute prima-donna' argument is a good one, but I don't think it's unreasonable to move CPS orders to the front of the queue within given intervals-- perhaps 2 weeks or 30 days. If ordering 'officially' opened on March 1, my June order shouldn't beat yours out the door... but if your livelihood depends on your gear and you need one for a fixed-date event, your order should take precedence over my butterfly-chasing.
What about the time period before the 1D X was announced (October 2011 and back to the beginning of the Earth)? Did everyone still need the 1D X (not in existance yet) for their fixed-date event? Nobody NEEDS the 1D X for a fixed-date event. Unless your gear was sold foolishly before you had 1D X in hand, why can't people just shoot as normal until they get it? I can never understand this.