It completely depends on the pin code. Some pin codes are for the room only and some are for packages. Between DH and myself, we usually receive at least one of each every year. The offer will state if it is off a package or a room. Just be sure to read the whole offer.
If you receive a room only pin code and want a package, you will pay full rack rate for the tickets and the dining plan (if you choose it). If you receive a package discount, I've frequently asked if there was a similar room only discount, as I find the dining plan to be more expensive than paying out-of-pocket and can get tickets deeply discounted through DHs work. Not every CM knows how to get the equivalent room-only discount, but I find that if I keep calling, I eventually hit on one that knows how. One of those rare *excellent & knowledgable* CMs once told me that there is always a room-only discount with the package discounts; you just have to be persistent/find the right person who can get it for you.