Actually this is better than miles. If I read this correctly, it is a $150 GIFT CERTIFICATE which differs from a discount certificate. If you go to SWA's website, you can actually purchase GIFT CERTIFICATES which spend like CASH. You earn segments on trips paid with gift certificates, so you are actually double dipping. Free trip and miles/segments. That is if I'm reading this correctly. I have used Marriott GC's which I have gotten free then stayed free AND collected Marriott Rewards points for my free stay. Just wondering if this could be a similar deal.