I guess this is the question you have to ask yourself - would Disney be better if you had unlimited FastPass? Yes, the planning works and mapping out your itinerary, planning your ADRs, downloading the app, watching line times - it all works. And you are used to it, and maybe you enjoy it a little bit.
But, if you didn't have to...If you could pick 50s Prime Time vs. Sci Fi on the day your there. Or if you could have all of the food option of Disney springs only a five minute walk from the front gate of whichever park you were at. I could go on and on.
I will admit this, if my family could go on Toy Story Mania non stop and have the same family competition as we do on Men in Black, we would book at Disney a lot more often. Fact is, it is a better ride. But, to wait for nearly 2 hours for our second ride of the day is a complete bummer.
In fact, it now costs me about $125 per person per day to go to Cedar Point here in Ohio, because my kids NEED the Fast Lane Plus because Universal spoiled them so badly...