Because I travel a lot for business, I wanted to take advantage of the fact that I am a frequent-flier as much as possible.  I didn't want to get stuck with an credit card that limits me to just one specific airline (and each of the major players seems to have their own nowadays), since I fly on different airlines (depending on the city-pair for that specific day).  I also wanted to have a credit card that would reward me for hotel stays as well.  The Starwood Preferred Guest card by American Express not only allows you to redeem points for free stays at their quality hotel chains, but this...