First, there was the MIASCOR lounge at the Ninoy Aquino International Airport (NAIA) TerminaL 1. Then came the Sky View Lounge, operated also by MIASCOR, at NAIA Terminal 3 for international departures. What’s in common? Free lounge access for all Citibank Platinum and PremierMiles card holders.  Not bad. Consider it your ROI on those scratches…