The cards also come with perks like priority boarding, a free checked bag and no cancellation fees depending upon which card you go for. (rewardexpert.com)
There's also other perks like free checked bags, earning bonus miles, priority standby, earning 500 mile upgrades (I haven't used any yet). (themilesprofessor.com)
You can have better travel experiences and get perks like free room upgrades. (creditdonkey.com)