As if we are going to win. Ha! Of course, I would love it!
What if you are staying on property or off? Do you get reimbursed for your hotel for the night you are not staying in it? I doubt it. So you are already paying for your room that night. It would cost you x amount of money.
Don't forget, you will need to pay taxes on the prize you won, if you accept it. So, in a way, you will be paying to stay in the castle on top of what you are paying for your current hotel. What if you have ADR's for that evening that are prepaid? Can you cancel your evening plans without being charged? It is less than 24 hours til your ADR or event you have scheduled for the evening. If so, can Disney reschedule it for another evening during your trip. What if it is something you really want to do while you are there. You may miss out on doing your "dream" to spend the night in the castle.
Trying to go thru all the scenarios, we think we would stay there as it is a once in a lifetime opportunity. But it would throw a kink in the schedule and you might be out more than you think.
It may be worth it to one person but not to another.
But, of course, it my heart of hearts, it would be a dream come true.