Van, my dude, for the convenience of an actual F.O.B right next to the dungeon she would probably be willing to carry you in her arms the whole way while fanning you as the others feed you and bring you drinks.
When dungeon delving you have to take into account the travel time in and out, supplies, potential problems, shit going south fast, shit you can't plan for and travel time back to a city. The entire time of which you may need to be on alert and ready to fight at a moments notice, even outside of the dungeon in case of bandits or less reputable adventurers.