You can probably double up on a couple of your purchases. These days, all you need for surfing the web and checking the weather is a phone or a tablet. A phone is kind of small for browsing web pages, so a nice 7-10" tablet would be better. Many tablets these days also come with cell network access and hotspot capability. That means you could also use the tablet in place of a jetpack.
I have a Verizon Jetpack that is on their prepay plan. I pay $60 to get 3GB of data allowance good for a month. I got a Google Nexus 7 tablet from Verizon a year and a half ago, and since then I have only used the Jetpack once. The tablet looks like a router to my laptop and allows me to connect to the internet through the Verizon network. The speed is always faster than any campground wifi I've ever seen.
The only time I've used the Jetpack since getting the tablet was last fall when I was in Fishing Bridge campground in Yellowstone. Yellowstone now has limited cell service, but my tablet could not see a signal. The Jetpack has better range and I was able to get 1 or 2 signal bars using it.
