neophyte makes a good point about the ability to double-dip with a coupon and i-dine. But, it is rare for me to have a coupon.
In my original post I noted that miles are just not that attractive to me anymore, so the free i-dine program is loosing its appeal. Sure, there's i-dine prime, but that has a fee, which means you have to eat out a lot before you come out ahead.