You could, however depending on cost difference that could possibly cost you a ton. It really depends on how interested you are in a nicer hotel as well. I was there just a few weeks ago in what should have been a low crowd time and it ended up being too busy for us, we never got to ride Skull Island and Spider-Man was a one-time ride because the lines were just too long for us. Had we had express, we would have done them many times. Just food for thought.
Also, once you do express, you’ll never want to go back without it, so keep that in mind. We had never done express until our December trip, and when we went back in January, it was a totally different experience, for the worse. Before December, we had gone many times without it and never knew any better. Now that we have had EP, I’ll be hard pressed to go back without it.