Neither my wife nor I had been to Disney World as kids. Vacations always seemed to consist of road trips to family.
When we started dating, we talked about all the places we wanted to travel to, including Disney World. It was kind of a "we've got to see it" thing. As we started planning our wedding, somehow (and I'm still not sure how this happened exactly because it wasn't planned) we started to include a very subtle Disney theme.
Our honeymoon was originally going to be a trip to Steamboat Springs, CO (we were living in Fort Collins at the time), but thanks to a rather hefty tax refund that year, we had the opportunity to afford a more expensive trip. When I told my wife that we could change destination, without hesitation we agreed on Disney World.
Even at that point, it was still a matter of "it will be exciting" to see, but we had no idea of what was to come. On our first full day in Orlando it happened...we rode the bus to the Magic Kingdom, and as we walked through the entrance, around the train station....BAM! Two more fanatics were born!
Six months later we were in bed, and out of nowhere I had this great idea...go back for our 1 year anniversary. I'm a planner, so I began researching for the trip...that's when I found the DIS and the podcast, enabling our relatively new found addiction to strengthen.
Edit:
Finally, the condition became chronic when we saw Wishes at MK, then the Spectromagic parade (a total surprise-something I had not discovered in my planning!).
I forgot to mention this....thanks MARCIAKAZ. Wishes has ruined every other fireworks show I've seen in my life. Everytime I see fireworks, my thoughts shift to Main Street, I hear the music, and the obsession continues.