Next year was planning to upgrade my 18ft. SeaRay I/O with a early/mid 90's inboard. Maybe a ProStar or something similar. The problem is that as I sit down and really think about it... I don't exactly know why I'd be "upgrading"? The early/mid 90's inboards were built as ski boats and not even designed to throw a wake so you can't use "the hull is better" as a reason. And I can't see how the motor/drive would really improve anything either. My I/O right now has a tower and a nice sun pad on the back. Matter of fact, the way it's laid out, it looks a lot like a newer V-drive. Yet I don't see wakeboarders flocking to buy I/O's. And I know there has to be a reason for that.
So what are some reasons to upgrade to a early/mid 90's inboard from the boat I have now?