When you booked were you able to get the group prices as there are 10 total going? Well I know I am thinking all are going. I usually fly Alaska from Portland, ore. I have seen offers for groups where you get a free ticket for the 10th person. I do not think getting flights at a discount matter either.
Alaska is having an airfare discound where you can fly for around 140.00 round trip from seattle and portland. Alaska will aslo do a price quarantee where if you paid more and the price goes down you can get the difference put into your Alaska Airlines "wallet" . Make sure you sign up for their frequent flier accounts.