I think only you can decide if it's worth it.
The big pro of CR is that it is walkable to Magic Kingdom, you can watch fireworks from the beach, and there's the monorail. The food options are good, and you have ready access to other food on the monorail loop. The rooms are large, generally with 2 queen beds and a pull out. Transport to HS, AK and DS is often on buses shared with other monorail resorts.
The big downside of CR is cost (as you've identified), the monorail is not always reliable, noise in the main tower/distance from garden wing.
Many would call the theme a little "blah." This is a plus or a minus, depending on your perspective.
At POR, you get the two queens and a pull-out. The pool theme is a bit more fun, and you have access to the POFQ themed pool. You bus everywhere, save Disney Springs.
I would say that for many, deluxe vs. mod comes down to how much time they plan to spend at resorts vs. parks. If you're park warriors, don't spend the extra for a deluxe that you just sleep in. The value of a deluxe starts showing itself when you use the resort for leisure.