I think the days of "winging it" on a Disney trip are long gone, therefore making ADRs and being prepared are a good thing. But beware of that term "perfect vacation"! Chances are it won't be perfect and no matter how much planning you do, there are variables that will factor in.
I love trip planning, Disney or otherwise. It's a hobby of mine, something I enjoy helping others with, and my family has come to rely on the fact that I will have everything all set for wherever we are going. We have been to Disney countless times, and I have evolved with the changes over the years. Basically I have it down pat, so how could I mess it up, right? Wrong.
Last August we had a great trip, but without even truly realizing it, I wound up adding all these extras trying to make it super special. My oldest is off to college this fall, and the program he will be entering into is 6 years long and intense. I knew this was going to be a last opportunity for a while for our family to do a Disney trip together, as he will need summer and winter sessions to take classes as well. I went over the top! I had us do a split stay because we love the BC, but he always wanted to stay at the Poly, I made t-shirts, we did tours, we did this, we did that, you name it. What was I thinking?? That's not why we love Disney - running around like crazy is not our thing, and that is exactly what I had us doing to make it as special as possible. And the whole time I kept seeing him as the toddler I first brought to Disney many years before who only wanted to play in the fountains. I would be crying for no reason (in hindsight I realized all this was because we were having "last" moments - it wasn't clear as it was happening).
Of course we had a great time, but there was no need to go over the top the way I did. So enjoy the planning, but please don't try to make it perfect. Our favorite Disney trip ever was about five years ago when, through a series of things going on at home with family and their other obligations, we found ourselves not hosting Thanksgiving for the first time. I had a friend who was in the same boat for different reasons and two weeks before Thanksgiving we figured, hey, let's go to Disney instead! It was the perfect trip! We were flexible, had no ADRs to speak of (we ate turkey legs on Thanksgiving - easiest Thanksgiving prep ever
), took what rooms we could get, etc. No planning = perfection. Without expectation and months of planning, we went in knowing we weren't going to do it all in a quick trip during a holiday weekend.
Enjoy the planning, but more importantly, enjoy the trip! The little, unexpected, unplanned gifts of magic that Disney will give you will override anything you could have planned
.