You would be a fool not to buy the blu ray.
people who say the blu ray looks shit around here probably have shit dispays.
Put it through a good system(I have a 4k Sony projector) and they look amazing:
35mm Above......Blu Ray through a Sony 4K projector below:
Also OLED tvs have just hit the market.
Star Wars...with it's black space backgrounds will benefit....OLED on the left...LCD on the right: