For me, the LOTR license is a dream come true. That has been my wish ever since the movie trilogy was announced. My origin of interest in Castle/Kingdoms is because of LOTR. And now I will no longer have to pretend my dwarfs, elves, trolls, etc are from Middle Earth. They will be authentic! I'm ecstatic and thrilled. My coworkers are celebrating my birthday today, and this is the best present ever!
I'll be getting the Back to the Future sets too. (Another wishlist license.) I won't need to horde massive armies like in LOTR, so it will be much more affordable.