I own three movies, Apocalypto, Pan's Labyrinth and some anime that I still haven't watched. Tekkonkinkrit I think it's called. I hesitated in buying DVDs when that was new too; I always worry when I'm buying something that requires a relatively expensive player. I'm definitely getting the Pixar movies, and I want Blue Planet, and Planet Earth. Basically, unless the HD imagery is an important factor, I'll just stick with DVD. I'd never buy a comedy series on Blu Ray.
Crap, crimsondynamics reminded me, I really need to get Blood Diamond on Blu Ray.