Yeah, while most of it is decent and LotR is a decent part of geek lore, it's not really a quotable work. Most geeks recognize the 'one ring to rule them all' quote, but the other one is pretty darn unremarkable.
The lack of Mel Brooks is disturbing.
The original star wars trilogy is quotable in it's entirety.
More Monty python! While not all of it is comedy gold, it is probably quoted more than anything but star wars.
A little bit more firefly will be nice (what we've been saying since it was cancelled.