The whole site comes across as a bit of a skeezy sales letter. You're a designer, you're better than that.
And this is why many designers are horrible at making websites that sell. When I sold my first book, I tried a short-form, nicely designed landing page. I even thought about doing it with my second book. But I always come back to the sales letter, because it works.
This sales-letter style seems more prevalent in eBook/video downloads than SaaS (though we've all seen 37signals' A/B tests). Reeks of a 'PAY $200 TO SEE HOW TO LOSE 100LBS IN 2 WEEKS'.
edit: actually, with no offence intended - your book's website is one of the ones I was thinking of. I was seriously considering buying it from the HN title but was totally put off by the website. I'm sure it's a fantastic book and I'm sure I'd benefit from it, but the website left a bad taste in my mouth.
And this is why many designers are horrible at making websites that sell. When I sold my first book, I tried a short-form, nicely designed landing page. I even thought about doing it with my second book. But I always come back to the sales letter, because it works.