I read the Lampoon version when it first came out. It was hysterical. After that I never felt the need to read the original until recently.

But you'll have to have it all put out after the Savoy Truffle.

I also read the (even much better) Lampoon Frank Herbert parody "Doon".

It starred such notables as Pall Muave'Bib, Duke Lotto, the Lady Jazzica, Baron Hard-Chargin', Princess Serutan, the Revved-up Mothers (the Boni Maroni), the Schleppin' Guild, the Noamchomski, the Shutout Mopes, Gurney Halavah, Dr Wellington Oh-Yeah, Drunken Omaha, Safire Halfwit, and the rise of the Kumquat-Hagendasz on the kitchen planet Arruckus.

Best of all, it skewers Herbert's ponderous prose style perfectly:

This realization focused within him in a sudden sparkflash computation, and in the clear brilliance of that illumination, the boy Pall understood a profoundness. His life, hitherto a child's plaything, devoid of direction–seemingly! Or had there in fact always been a plan–a plan within a plan within a plan (whatever that meant (whatever that meant (whatever that meant)))?–was now encompassed by a terrible purpose. He knew the meaning of the word terrible, and he knew the meaning of the world purpose. And therefore he understood deeply the meaning of "terrible purpose" Unless he, in the solitude of his deeply brain-filled mind, misunderstood this revelation, and was in fact confronted with a "terrible papoose." What could that mean?