Look here folks, we are all here to help one another at this mileage game so it will be played by some. I have bought things online that offered free shipping only to return the items back to the store. I didn't care som much about earning miles on my credit card but I earned enough points to get a nearly free trip to Argentina (which I earned miles on). With my Delta AMEX, I bought hundreds of gift cards at Home Depot, bought batteries, recieved cashed back and put it in the bank. Double miles, batteries and interest on the money back. Who should complain that this is unethical? It worked! That is all that matters. It is best to jump in the game before the game is over. I am all for those who have earned miles in every way possible. More power to you all.