Sams club tickets will cost $1044 while UT will cost $1110 for our family of 5. However, we want to upgrade to AP when we are there. Is this possible with tickets bought at Sams?
Make sure that there is no tax added to the Sam's Club tickets on top of that.
The only way I can see those tickets possibly being an issue is if there is an expiration date on them. If they are just non expiring tickets, they should be fine.