For the record, I am not selling my book... so let's not accuse me of "ruining it for others."
I just don't understand the argument that only the "original" buying member should be able to use the book. Casinos offer these coupons as a marketing tool. Whether I use the coupon myself or someone else uses the coupon from my book, it is in the casino's benefit when a coupon gets used.
One could argue that selling the book should make the casinos happy, since their coupon becomes exposed to an additional potential customer.
Let's be honest: the casinos aren't trying to do us a "favor" by putting their coupon in the book. They are marketing. The point of marketing is to get your message in front of as many people in your target market as possible.
The only one losing out from an MRB being resold is LVA. I don't think you'll hear many casinos complaining and threatening to pull their offers.
Brent