I too was using my Sheraton card as often as possible until the recent Delta promotion. You get 10,000 bonus miles if you charge $25,000 in one year plus double miles for groc. and gas. I also got 10,000 miles for signing up. I heard on one of these boards that if you were one of the first 10,000(?) to apply they would also match up to 50,000 points from any other frequent flyerprogram. I have not yet heard if I was one of the 10,000 but your post reminded me to call and find out!