If you havent been to DL since 1989, you havent been on Indiana Jones yet. That ride was opened in the early 90s I believe, like 92 if im not mistaken. As an adult, the longest we have gone between trips was 12/02-5/04. And I never plan on doing that again. As a child I know I went in 7th grade (4/95) and didnt go back until we took a day trip in 2/02, after that 1 little taste in Feb 2002, I had to start going back, so then came 7/02, then 12/02, and the rest is history (see below).
Have fun!
Brandy