For what this is worth, I checked the Oasis of the Seas for the same week. The cost for us in a similar cabin is actually a little more than the DCL option.
DWF
PS. As mentioned, I am looking for viable alternatives with a Saturday departure and return no later than the following Sunday. Makes choices limited.
PPS. Thought about Grand Canyon but it seems very cold in March.
Have you thought about an AI in Mexico? We stayed at a resort in the Playa del Carmen area 2 years ago over spring break and loved it. Plenty warm and the beach was great. There are choices in all budgets.
Mike