We very rarely leave the ship in port anymore. If you stay aboard, you can have any lounger you want. You can spend as long in the hot tub by yourself as you wish. You don't have to stand in line at the buffet to get any food or dessert you wish, again, and again, and again. There are limited activities and games after lunch, and you stand a much better chance of winning, because all those people who cheat are ashore.
You can enjoy visiting with the crew, as they aren't nearly as busy, and will have time to chat with you. (I've spent many a GREAT hour sitting with members of the band, the lead singers, the dancers
, the guest comedians and performers, and many, many of the ships officers and crew. They simply aren't as busy, and have time to spend with you.)