Currently the largest ship ever built, the Queen Mary 2 features Wi-Fi throughout: The QM2 not only makes its own fresh water (by distilling sea water) and consumes its own waste with microbes, but the ship was designed with Wi-Fi in mind, offering access throughout. Prices weren't stated, but text SMS messages cost $1.50 each to send, so let's scale up from there.
(Headline an homage to this Onion story.)