We just returned from the WDW Friday. We stayed 6 nights at the Contemporary... me, DH and DS - 4. We were not on the meal plan and the only ADR we scheduled was Chef Mickey's.
We had a garden view room and was able to watch Wishes from the comfort of our room every night. DS is afraid of the noise of the fireworks so we kept the door closed, but it was still a nice treat for DH and I.
Almost every morning, we had a quick breakfast at the Contempo Cafe and then headed to the parks. We brought empty, reuseable water bottles on the trip with us and would fill them up in the mornings from the Cafe. We ate lunch at the parks and would always ask for ice water to refill our bottles.
I'm sure CL offers other perks, but for $900 extra, I would keep the Garden View.