I guess I'm one of the few that actually downloads the occasional movie off of my 360 then. It's cheaper to rent a movie, in High-Definition mind you, then it is to rent a SD movie from Blockbuster.
I have the Blockbuster Online deal, and I get alot of HD-DVD movies from there, but they don't offer Wicker Man in HD. The 360 does, so I'll rent it from there. I need to put my HD-TV to work to justify the cost.
Plus, my GF's niece came over for the weekend, jumped on the 360 and downloaded Barnyard, and presto, a cartoon to watch with the 4 yr old. And, once again, cheaper than Blockbuster, and I don't even have to get my lazy butt off of the couch to grab it, or to return it. I love having the extra options.