Its closer than you think. There is already 1080p streaming with 5.1 sound on Netflix and Vudu Box HDX streams the same 24 fps as Blu Ray. Roku Box also offers 1080p streaming. This is just the beginning of the end for physical media. One day all BD movies will be available instantly on Netflix and I will no longer have to wait for them to arrive in the mail. I will just add them to my instant queue.
If you think the "1080p" with "5.1" sound Netflix gives you is anything compared to the 1080p, dolby true hd 7.1 sound blu-ray offers you need to put down the crack pipe.