I'm not sure what the cash rates are for that time period.
You can give MS a call at any time and see if there is a cash rate available and if the discount is available. You don not have to have VB as your home resort to get a discount.
I think Thanksgiving would be a great time to be at Vero. We went over for brunch this year and it felt really cozy.
They weren't terribly busy but it was right after the 2 hurricanes.
They did have the Christmas decorations up.