The films could have been one, without all the extra stuff they crammed in. I like them ok if I turn off my brain and just watch them as a Tolkien-related fantasy adventure mishmash. I wouldn't introduce someone to The Actual Hobbit through them.
I recently reread Reamde, just to see if there was anything I missed that connected it to the Neal Stephenson Extended Universe, but I didn't pick up on anything... weird. Also a book called The Dragons Of Babel by Michael Swanwick, which was fun. Poking at fantasy novel tropes throughout. I wasn't sure exactly what it was pointing at until the end made me laugh out loud. Good times.