[graeme]

In your position, I'd get the book, read it, evaluate, and then consider whether to get the larger package.

Basically, if it seems likely to lead to a profitable idea, then $299 is trivial. If it doesn't, then just the book will be fine.

For me, it was clear from reading the book that I had an idea I should pursue. You'll probably either get that from the book, or not. If you do have something to launch, then you'll have a better idea if the rest of the package is worth it.