kirkwallace, thank you for your kind words. I believe the book will save you and anyone else who applies the Audiophile Laws a great deal of money by removing guesswork from system building. In the book I discuss SIB (System Improvement Bias), which can keep a person from optimizing the new speakers or component. Follow my advice regarding introducing a new product such as a DAC, and you likely will improve its sound further.
A great many audiophiles are occupied with marginal improvements and do not realize that they have slowed system advancement to a crawl by using the received wisdom of the industry and community. I help people make much more significant improvements in a timely fashion, leading to higher satisfaction.