This movie serves so many purposes and accomplishes them all. TESB does a fantastic job of bridging the gap between an intro and a conclusion to a great saga. Not only that, but this great sequel builds character involvement and plot. An all time great and easily the best of the Star Wars movies, one gets a true feel for the story and what the characters are going through. ROTJ and a New Hope do not give you this same feeling. A new Hope is simply meant to introduce the characters (Lucas alluded to this), and ROTJ wraps things up. On a personal note I watch this one the most and never get sick of it. It is definitely the meat and potatoes of Star Wars.
