SpaceX has openly advertised their intent to turn starship into a faster long distance travel alternative to airplanes. Their intent, should all go well, is to have many, many, spaceports.

For their conventional space launch operations they also want multiple... to target different orbits, and to parallelize the high volume operations they anticipate.

There's already two Starship launch sites. The one in use in Texas, and one (LC-39A) in development at Kennedy Space Center, Florida. And there's good reason to believe they've begun planning a third in Louisiana. https://forum.nasaspaceflight.com/index.php?topic=64900.0