She REALLY likes WDW. I bet she wouldn't even consider skipping WDW for a trip to Disneyland even though by EVERY account it is a better "Disney Parks" experience. That said, she can experience URO and STILL run back to the comfort of WDW for an evening Magical® cupcake to calm her nerves.
Leaving ones comfort zone is stressful. Especially when someone has gone to great lengths and paid a king's ransom to get into it.
I wonder how many WDW faithful would ever consider jumping out of a boat in the open sea to snorkel the Molasses reef off of Key Largo? My 12 and 16 year old daughters did. And they say it was BY FAR the most amazing thing they have ever done. And they ride 300' tall/96 mph roller coasters, have seen Broadway plays on Broadway, eaten at 5 star restaurants, visited Yellowstone, Yosemite, The Grand Canyon, The Everglades, Disneyland and every other major Theme/Amusement Park in the US. As far as I can tell I have deleted their "comfort zone". That's scary and pleasing at the same time.
But the scariest thing they have ever done was have lunch with a certain "Spirit" at The Biergarten. He's like famous or something.