Free sample is not really a sample at all. It's just a hook, an introduction. I would be willing to buy this if there was a real sample, even one page.
My motto for writing is: words count, not word counts. What I mean by that is my books are informationally dense. Giving away a chapter is giving away a lot of information.
I priced the book so it would be affordable to everyone, and you're also covered with a 45 day money back guarantee. If you're not 100% satisfied with the results, get an instant refund and keep the book. I only want happy customers.
While one chapter might be too much to give away, the original poster had a point that one or two pages would be the least one should expect from a free sample download.
Just providing a download of the cover and dedication page is worse than not having a 'sample' link at all, because anyone who clicks it thinks they're going to get to read a page or two, and will be disappointed when they can't.
There's a reason he's got the top comment now - several people clicked the link and then felt the same way.