Just booked the honeymoon!! We're going to the Mayan Riviera, leaving July 30th

So excited!
I delayed booking for a bit after we first looked at honeymoon packages, but now that FI has gotten his permanent position I finally booked. Turns out it was a good thing we waited - prices went down and we saved about $800 total!
Now, the question is: Do we save the $800, or use it for fun excursions/spa packages/shopping since we were already planning on spending it anyways?