I haven't read Masterson's latest book, and didn't spend nearly that much for the one that I have. The Search for the Real Self may be a little bit dated, but I don't think that much has changed, and reviews said the newer book didn't add so much as to be worth the extra money. The one that I have does give the basics on treating the disorders. It helped.

Masterson focuses on Borderline and Narcissistic, with some mention of Schizoid. I get the impression that his conceptualizations of these are much broader than most. Basically, from reading Masterson, anybody with a deflated false self would be Borderline, anyone with an overinflated false self would be Narcissistic, and those who avoid relationships with others would be Schizoid. Most therapists wouldn't diagnose those three disorders that much. But his book still helps, and if anything maybe it can help more people than if his concepts of the disorders were tighter.