Netflix, Netflix, Netflix. Amazingly, the entire demise of Blu-rays and DVDs (and Blockbuster) are due to one company. There were other players in the cultural shift to streaming movies, but Netflix is the iTunes of movies on demand. Funny enough, iTunes offers movie rentals as well.
Blu-ray players were the cream of the crop when it came to watching movies for a few years, but 2013 is expected to be the last year of growth for the market. As the ease of use, accessibility and quality of Netflix continues to increase as it rolls out 4K streaming over the next few years (not to mention other competitors that may generate interest from users), look for Blu-ray players to quickly become a nice collectible right next to your VCR.