I decided today not to bother with Rewards Network dining. I looked at the participating restaurants in my area and estimated that I'd visit them 1/month. For an average check of $40 and at a rate of 3 points/dollar that's about 1500 miles in the first year. I value those miles conservatively at $25 and feel that's just not worth giving my credit card numbers to a third party and letting them track my spending.