I agree. We love sea days also. We picked this itinerary because of the extra day at sea and because we love Aruba.
We do not shop!!! A t-shirt here and there, but that is it. I will buy something on board the ship with the Adventure of the Seas on it. I try to do that with each cruise. Nothing big, just a token for my collection.
I am sure it will be worth a fortune some day.