AA has auto buying service. I think you get 1 mile for each $4 spent. I got about 4500 AA miles two years ago and not to mention about $30 cash rebate for using GE MC Cashback card. BTW they were on top of dealer incentives and so on...
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"It is not doing the things we like to do, but liking the things we have to do, that makes life blessed." - Goethe