When DVDs first came out, my wife and I would buy pretty much any move we liked if we saw it on sale for $5-10. In practice, we've watched only a handful more than once. Now that most movies are available on streaming video, we rarely buy anything on physical media anymore. The exceptions are old movies that aren't available on streaming media, or spectacles like the "Lawrence of Arabia" special edition and the "Lord of the Rings" director's cut, which we buy on Blu-Ray. We have a 120" projection screen and a 7.1 surround system, which makes it worthwhile.