I don't think dowloads will make it anytime soon, maybe in 5-6 years if there is a massive change in prices, drm policy and ways to save the media.
With dowloads less than 10$, no drm (which is more annoying for customers than the others) and some solid state memories such as big cheap sdcards to save the file, it could work.
Actually, I agree with bleu-ocelot, bluray will be dominant before downloads become mainstream.
They will know Helgan belongs to Helghasts







