Tor Tempts (or Taunts) your reading tastebuds

I first came to know Sanderson's writing through his Mistborn Trilogy, and from that I had no further trepidation of his picking up the Wheel of Time series books from the late Robert Jordan.  Now is offering up the first three chapters of Brandon Sanderson's book in his new series, The Way of Kings (book one of The Stormlight Archive).  To read, free registration with the site is required.

Having heard about this book at some conventions, I can tell you that I am definitely eager to read it.  The question is will three chapters carry me to August 31st or just torture me? 

What about you?  Do you like sneak peaks of books or is it frustrating knowing you can't turn to the next chapter until months later?