No? Don't be surprised. Turns out that most Americans, and indeed most of the world, sub-vocalize to some extent. That's natural, it's simply a hold over from when you were originally taught to read. The trouble is, after we learn to read, very few people rarely improve upon the basic reading skills we're as children.
In an art history class one morning, the professor asked his students "What would the world be like without color?" It would be sad and depressing. And a writer asked himself what would the world be like without words? It would be a world without poetry and blogs. A world without reading would be like staring at a blank page, or having a thought that you could not share, because if you did no one would be able to understand.