Yes, you can but make sure you do your math. A few years ago we went during free dining, planning to stay at an All Star resort and upgrade. Since my kids were both considered adults, we were paying to upgrade 4 adults to the regular dining plan. Once we added that in, it was only about $100 more for a whole week to just stay at a moderate resort and get the regular dining included. We've done that three years now. We always check what it would be to stay Value and upgrade and the difference is so small that we've stuck with Moderate stays.