I've already submitted my application

saving 20 bucks is not the matter, the cool thing is enjoying this book as soon as possible and be one of the first to review it
Also I think quality reviews will help Steve much more than a single sale, because they can translate into many more sales along the road. I expect a deluge of e-ink talking about this book quite soon.
So, note to self: do a similar thing when I publish my first ebook.
Regards,