How much is reasonable for a coach?

[Cody C.]

Is 8000 too much for a coach? One who says their plan is to get you away from your day job within a year, and be making money in REI in about 30-60 days? He seems pretty knowledgeable, seems legit on his success, and he has no real contract. It's a month to month thing, where your 8000 is divided into payments throughout the year.

So my question is this: coaching can be beneficial, I have no doubt, as can a mentor. Who should pay for coaching with someone, and where does a mentor fit into all this?

Thanks,
Cody