If you look around for B&N's usual 20-30% coupons, they will apply them to clearance items... which really knocks down the prices. Granted, they don't carry any of the squadrons or the newer ships, but you can end up with a rather robust set of ships for ~70% off retail with a little hunting around.
AND you can search their in-store inventory on their website, and have them set aside anything you want for pickup... even on clearance items.
BGG has paid for itself by saving me from buying crappy games!
Come on people! Donate! nothing in life is free!
I set my son up for Christmas at this sale. There was one weird anomaly though. Everything was 50% off, Except the Gladiator. it was still full price. That was the only thing I found that was not marked down.