Should I see the sequels?

I was left a bit disappointed by them, didn't find them quite as entertaining as the original. Once you can see past the eye-candy of the technical advances, you clearly see that they were running out of ideas. No wonder, considering the wide range of fascinating movements they already incorporated in the original. But parts 2 and 3 were obviously just produced in order to cash in on the craze and the success surrounding the first part of the trilogy.

Of course the fanboys will need to have watched the complete trilogy, but otherwise I can tell you that you won't have missed much if you have only seen the beginning of the saga.