For players that own ground vehicles that have been acquired from the pledge store, making use of that investment is important. However, it is also important to keep in mind that ground-based vehicles are not entirely supported in all hangar locations due to terrain or circumstances of the port.
When selecting an initial spawn location, it is thus important that players that own a ground vehicle choose a location that supports ground vehicles will ensure that you can access and claim them without troubles. New Babbage is a good choice for this, if you are uncertain which starting locations support ground vehicles.
A player's spawn location can be changed later, once you are in-game.