We estimate them to be 2.1 - 2.4 cents a point on average. (creditdonkey.com)
From a purely dollars and cents point of view I'm sure some booksellers somewhere will see value in this. (goodereader.com)
Do the math, but never ever take less than 2 cents a point in value, or you'd have been better off earning cash back instead of Membership Rewards points. (milestalk.com)