Im aware the outside was the only piece used in the movie, yet I love doin' the drive by each X-Mas and seeing the beautiful, glowing Leg Lamp. A house, diagonal across the street built a clear, plastic box protruding outside of their upstairs window, containing a replica of the leg lamp. After my visit, I go home and watch the film.
I hear its pricey and like I said, its not even the actual house the movie was filmed in, so I refuse to go in and make contributions to the place. Outside is the only Cleveland memorabilia as far as im concerned.
Regardless your outlook on the authenticity as to wether you go in and visit, or just give it a drive by. Check it out!