Instant Netflix II

So I signed up for Netflix and bought the fancy new LG BD300 Blu-ray player that allows for Netflix streaming content to be played... similar to the feelings of the author of this article, I was a little underwhelmed by the quality of the picture and sound delived by my fancy little network DVD player...

Regardless, an interesting point is raised by the author, he feels that streaming content was meant to see the demise and eventual end of the DVD. In our case, we focus our comparisons between Netflix and Blockbuster, with Blockbuster a clear second in the agility stakes. In the instant market, though, there are some more players, Vudu, Playstation 3 and Apple TV all have a hand in the market.

What are Netflix's advantages in the instant market? Their disadvantages?