I haven't seen any kid book club stuff out for a while. I know that my mom signed us up for a very popular one when we were kids, and she got really mad, b/c it was kind of a scam. They kept sending books and trying to charge it to her, even after she cancelled. So, just be careful of that. Also, a lot of the book club books, might not be as high of a quality. They tend to use cheaper paper, ink and not-so-great binding. Something to think about, since my kids are rather hard on their books, I know most young ones are.
If you are interested, no pressure. I sell usborne books and I do my own, "book of the month" type of program, and of course I am biased, but I do feel that our usborne baby books are far superior to most of the other baby board books (which is one of the main reason I became a consultant, b/c my kids and I fell in love with the books) I have seen on the market. PM me if you are interested.