When people claim that "Blu-Ray isn't worth it" what they are typically refering to is that most people don't notice enough of a difference on their TV, at the difference they view the movie at, when the images are not played back-to-back (or side by side) to justify the massive price difference between the two formats.
To understand why people might not see it your way, I want you to put both images on your screen and for you to stand 10 feet away and decide whether the difference in quality between the two images justifies spendinging hundreds of dollars on a Blu-Ray player and (often) $20+ more for every movie you buy.
People's opinions will change when they only "have to" spend $50 for a Blu-Ray player and can pick up movies in the Bargain Bin for $5 to $10
