At this point I buy everything with my American Express. The amount of extras they give you is just crazy. Between saving 6% on grocery, 3% on gas, extended warranties, credit on utility bills, and other random deals. It's basically a no-brainer. Assuming of course you're responsible, and pay it off every month.
I've been slowly switching everything over. I've been flying a lot too so getting a delta branded amex is really tempting for all the miles and such. Besides the extended warranties they give you, the travel aid is also a huge benefit. Instead of dealing with the airline I just give amex a call and they deal with it.
Many AMEX cards are not credit cards, they are charge cards, and supposed to be paid in full every month. Get one of these. Won't prevent mistakes but will remove the association between credit and money that many people have.
> Comes with 90 day warranty vs first gen had 1 year
> Optional 1-year, 2-year, and 3-year extended warranty available for U.S. customers sold separately.