<i>I would think that a force ghost would appear as it wanted to appear. And Anakin would want to appear as he was before he turned. Thats a simple enough explanation for me. </i> Makes sense to me. And since Obi Wan wouldn't care about looking young as a ghost and Yoda looks pretty much the same either way, it makes sense. Unless there's a dead Jedi sketch artist Anakin could hire to make up a vision of him at 50 and not all messed up, that's pretty much the only presenatble image he has of himself.