Funny thing is I would actually prefer downloading from official (maybe more legal) sources if I would find way to do that in my country, with my favorite OS, without stupid DRM restrictions and warnings and maybe for sane prices. But living in Germany and using Linux - such a movie-download service does to my knowledge in 2010 still not exist and is also not in sight.
Something like eDonkey but at the cost of lets say 1€ per GB and I would be happy. Then a DVD would be same price like cheap DVD's in a shop and I can decide to go with lower-quality if I don't want to spend as much.
I don't even know why producers don't just do that. Or maybe they do in other countries?