That's right, you get a basic rub, a Texas rub and a sauce recipe all for $20. The recipes are very user friendly and you can tweak them to your personal taste. This purchase is the only way to get the recipes and in my opinion the cost is very reasonable and the proceeds go to the support and maintenance of this great site.
The longer you interact on the site, the more you'll enjoy the effort that is put into the administration. This is a huge undertaking and most appreciated by the members.
Enjoy your experience, Joe.