You know what they say - once you've had fat, you'll never go back.
My experience is the exact opposite. I've ridden many years, and over time my tires have gotten smaller. 10 years ago, I thought of 32's as narrow and certainly didn't want skinnier. Now, I don't run anything but 23's.
Except on bad surfaces, I see no advantages to big tires, and it would take significant amounts of gravel, snow, or washboard surfaces to convince me to go bigger.