You sure paid a lot of money without doing much reading if you are just now noticing the benefits. good thing is that if you decide the card is not for you, you can get most of your money refunded.
The business card has some business partners and discounts. Not sure what benefits it lacks that the personal card has.
I use it for its perks like Starwood Platinum, gold status, club access, but do most of my charging on the AMEX Starwood card. 20,000 Starwood points == 25,000 AA miles. Card costs 430 per year after year one.