I cannot speak for any of the potential 'Extras' but the Musical itself, is off-the-charts fantastic. I had the pleasure of seeing 'Psych: The Musical' during the 2013 San Diego Comic Con premier and it was by far, the highlight of the week. I have seen every episode of 'Psych' at least 2-times, and while most shows start to fade after 4-5 seasons, 'Psych' has actually improved. I was initially nervous when I heard the idea of a Psych musical, but the cast and crew absolutely blew me away. The vocal talent of all involved, Corbin Bernsen aside, was the biggest surprise. Scratch that, the 2nd biggest surprise.... the return of a fallen (Stabbed, then Fallen) 'hero' had the crowd cheering. The show is broken up into 2 parts, but are seamlessly tied together into one cohesive story line. As a fan of non-traditional musicals (Dr. Horrible, Repo!, Todd and the Book of Pure Evil S02E10) I cannot recommend this any higher. If you are into Psych, the musical is near-perfect however, if you are coming in blind, there are a lot of jokes you WILL miss out on. Watch the first 100+ episodes before diving in here. I was even a little confused going in as I had seen up through the Season 7 finale and the Musical, takes place somewhere before S07E07. Can't wait for my copy to arrive!
Buy this! You know that's right!