What credit cards do you use?


A while back I was looking through the forums with someone mentioning that they just purchased some speakers new from the dealer. The cost was (for me, anyway) extraordinarily high, much more than I've spent in car purchases for my entire life. But then I started thinking, what kind of credit card did that person have to make that purchase? (Or was it a check, or cash?)

Do any of you use premium credit cards (AmEx Platinum, Chase Sapphire, etc) to get extended warranties, refunds if you don't like it, air miles, etc for audio purchases?

Michael
sufentanil
"I'll say it again, nothing is free"

Right you are, you pay for it. As T_Bone explained CC company charges store few percent to give me cash back (few percent) plus delay on payment and all other perks. Store has to raise the price by few percent but it is for everybody. Cashback I receive is possible because you pay few percent more in store getting nothing in return. Thank you.
As an update, largely on the basis of the recommendations of people in this thread, I got an American Express Platinum card nearly a month ago now. I'm currently in Singapore attending a conference, and I've already enjoyed the benefits of this card (access to airport lounges and no foreign currency conversion fees).

Thanks to all who recommended the AmEx Platinum.

Michael