While it's great that Joe will be releasing some Sitelok stacks, nonetheless a person still needs to purchase Sitelok itself. First domain used on is $40, but only $20 when used on additional domains. One of the best web design buys I've every made. Fantastic tool for handling all sorts of memberships.
Inserting the code on RW pages for Sitelok to work correctly is pretty darn simple. But I'm sure some will appreciate Joe's upcoming stacks for making the task a bit more simple again.