Originally Posted by smitch425
The ONLY rumor I have heard with regards to the QSDP and the mugs is that if and when the mugs can be used in the parks, they will remove the drink entitlement with the QSDP and people will use their included mugs for all QSDP meals. Again, that is just a rumor. As far as I know, they intend to keep mugs included in all dining plans.
Carrying mugs to the theme parks might make sense if you want to, and are allowed, to refill it at will during the day. People who only want a soda with their meal won't be happy if they have to take their mug to the parks in order to get a drink with their meal.