Just like digital photo cameras, digital film cameras are much more convenient. It’s easy to assume that they would have been adapted eventually, if they perform just as well as analog cameras. I don’t deny that Lucas probably recognized the potential and wanted to advance the technology. However, he definitely used it too early. He was more concerned with being comfortable while making the movie than with the final product. The reason more and more directors started to film digitally after Lucas was simply the advancement of the technology itself, not because they liked the look of Episode 2.