Do it at your favorite club, the wc staff may be able to get you a few bonus miles if you sign up for a three year or lifetime membership. Were not talking huge here, maybe 500 - 1000 pts for a three year and 5000 pts for a lifetime. Doesn't hurt to ask respectfully for some bonus miles. NWA wants your business / money and make sure it is the front line staff that is bringing it in for them.