A book of forever stamps, being sold here below face value - at 8.62 for 20, it is 43.1 cents each. The downside is that they're all going to be Christmas forever stamps depicting a nativity scene, and that is going to possibly annoy some people. But such is the way of things on this wacky, wacky world we live on.
Note that if you order 1, you are ordering 20 stamps in a book. If you order 3, you are ordering 60, and if you order 100, you're not ordering 100 stamps, you're ordering 2000