I find DVDs and Blu-rays a hassle, so streaming movies and concerts in full HD is perferct for me. I also run the sound signal optically out from my TV to a DAC and into my hifi. Great picture and sound.
I still like to buy CDs though, even if I don't own a CD player at the moment. Not sure if I will get another player, but I will probably keep buying CDs, rip them to FLAC and stream the files locally.