I do miss the landscapes and that feeling of being part of another world, which was Middle-Earth. I find myself reinstalling the Hobbit video game and other Lord of the Rings games just to play the less linear, more exploration-based levels, where I can admire the world Tolkien created. The magic has died somewhat because I've read every book and seen every film a good many times. When I read the Silmarillion for the first time, it was so close to reliving the magic of The Lord of the Rings again that it was amazing for me.
But I think in the end that feeling of wonder isn't going to come back, and you don't find it the same way in any other fantasy world either. We're stuck with nostalgia
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