Base construction, in conjunction with resource management, can be a very appealing game mechanic. While it may take different forms, with varying degrees of detail, the act of setting up a functional base of operations allows room for creativity and problem-solving. It provides opportunities for the player to set goals for themselves about what they need to build next. Seeing a base slowly improve as the player gets access to better resources and equipment gives a sense of accomplishment, and it better prepares them for whatever challenges the game has to offer. It also has the advantage of allowing the player to somewhat personalize their own hub, even if it's as simple as deciding where to place things. Throwing resource management into the mix makes it a bit more challenging, since the player inevitably needs the right combination of materials to build things they need.