These days, commentary tracks are becoming more and more of a tipping point for me between buying or renting a DVD. I rent way more than I buy, but for the movies that I rented once, liked, but didn't totally fall in love with, I straddle the fence about buying later down the line. If I find a gently used copy a movie with a great commentary track for dirt cheap, I'll pick it up, even if the movie is not in my Top 100 favorites. Amazing how far a great commentary track will go for me. Case in point, Eli Roth's films. Despite initially saying I didn't want to see Hostel or Hostel: Part II , I saw them. As grossed out as I was with certain scenes (and didn't necessarily find them to be great movies), I thought they were good movies overall. What totally sold me were the multiple commentary tracks for each film. Informative and entertaining, I found listening to them to be very worthwhile. Roth's solo commentary tracks for all of his films document how he got into...