We saw it (not 3D) and loved it.
Last month we had the opportunity to visit Hobbiton - the real place, but the bloke who owns the land has a real tourist trap there - $75 for an adult to just look around and I think the only part that you can enter is the Prancing Horse where you can get a cuppa and cakes. There were even dearer options as well.
We decided it was too expensive for the three of us so gave it a miss.
Maybe one day we can visit Weta Workshops, tho' I expect that won't be cheap either.
I can't wait for the next 2 movies.
Robyn (Kiwi)