It depends on your future plans. Although a Real ID will soon be required for domestic flights, you may use a passport card for domestic flights instead. This would prevent the need for a Real ID in that case. However, if you need access to certain Federal facilities, then a Real ID will be required. A passport card may not be accepted at every facility. With the Real ID deadline approaching, it is a good idea to go ahead and get one so that you will be prepared for whatever situation arises.