For us, the "view" is not worth it. $700-$800 is a BIG chunk. That is a lot of souvenirs or snacks. We have stayed at the GCH twice and were in the standard view both times. The first time we had a view of the front of the hotel and the second I don't even remember our view much because we weren't in our room long enough for me to remember. I think it was of trees, but I'm not sure. I would much rather have just a standard view and save the money. However, if you are going to spend time back at the room, then it might be worth it. For me, (and I would have to see the price difference before I spent the money), I might stay in a view room where we could see the fireworks if we had little kids and knew we were going to have to be back to the hotel early everything night and miss them in the park.
We just got back from staying at the DLH, and DH upgraded us to a deluxe pool view. When we got there they upgraded us to the premium pool view. We were super happy about getting the free upgrade, but we found out that the difference between the deluxe and premium was how high up you are. For us, we were glad we didn't spend the extra $30 a night for the premium that may be on the 7th floor instead of the 4th. And, we also found out that even though the pool view was nice, we don't think it was worth it for us since we weren't in the room much to enjoy it.