I cruise to get away from the crazy Internet world that we live in today.
But I think it is increasingly difficult. I do need to keep in touch with the office, so on my most recent cruise on the Norwegian Jade, I bought a 100 minute package (they gave 10 minutes free). Cost was $55 plus a $3.95 activation fee.
The speed was pretty fast though, and it worked well even when the ship was out in the ocean. (We were sailing the Med)