Some visual effects don't stand up to time so well

I'm watching Return of the Jedi, and I just noticed that they keep using different wipes whenever they change scenes. It reminds me of someone just learning to use PowerPoint playing with transitions: "Look what I can do!" Of course, all of Star Wars, as much as it comforts us and makes us run around pretending to be Jedi, is really just George Lucas going "Look what I can do!"