It is NOT all about the money for Lucas, because he says he won't do them. But perhaps 30 or 50 years down the road when Lucas is no longer around, then LFL the studio just might, unless Lucas forbids it in his will somehow.
He might change his mind, but I doubt it. He also said in '83 that he'd shoot the next movies in video, instead of film. Changed his mind on that too.
You are making it look as if Lucas is desperate for money.
I have heard that argument a thousand times regarding this ep7,8,9 question and it is lame. Even if he's going to make another movie, wheter it is sequel, prequel or even Star Wars at all, it is not going to be because he needs money, it's because he wants to make a story go down in history, entertain the freaking whole world or just his own fulfillment. Who the hell would just make a movie for financial purposes?!!
It's not just some product. It's f*cking history in the making.