Kindle Sample Complaint

Before I start complaining, let me just say that I love my Kindle and I love the fact that I can get samples of books on my Kindle to read before I decide if I want to purchase a book.  However, I recently got samples from two books I was considering purchasing and both of the samples were filled with lengthy introductions rather than actual book chapters.  This is so frustrating!  When I get a sample downloaded, I don't want to read some critical analysis of the work, I want to read the work itself.  Give me the first chapter, not some blowhard's discussion of how "groundbreaking" the novel was for its time.