Currently the ships don't do much in Destiny. One way they could be better is allowing the player to go inside while in orbit. They could access their vaults or look at all of their grimoire cards. Currently there is no way to see grimoire in the game, and this would be a good way to do that. All of the players characters could be inside the ship, like the ships crew. They don't have to actually do anything, but they would look cool. The ship could also hold trophies on display that are collected from bosses. Better ships could have more storage to display more trophies. Trophies would add a new aspect to the game that would make people keep playing because their would be something new to do other than collect new armor and weapons. Players could visit their friends ships and check out their cool trophies. I think this would really add a new dimension to the game and help people to keep playing.