If I understand your question correctly, you’re asking if you need to make additional purchase of airport scenery to be able to spawn at a specific airport. The answer to that is no. X-Plane comes with worldwide airport database. However as default, the less popular/well-known is the particular airport, the less details are being depicted (buildings, taxiways, surrounding scenery accuracy etc.). There are hundreds of “DLCs”, free or payware, available for download. They may provide significant enhancement, but aren’t required.