My summary: Compare all the discount options for the time period you are going. Sometimes, free dining would be the best deal, sometimes not. A big variable is the number of kids in the group since the dining plan is cheap for them and they may cause you to get more than one room which makes a room discount more palatable. My advice - check out mousesavers, look at offsite hotel options, and checking out renting DVC points from reputable owners like me if you have time. The dining discount is a nice discount though. Nothing wrong with it.