German entrepreneur says he is 150,000 miles into a 1 million air mile target . Scheme involves buying gift cards with air mile-linked credit cards , and immediately liquidating the cash . `` As for Membership Rewards , the most luxurious option is Singapore Airlines ' [ frequent flyer program ] KrisFlyer to Hong Kong . Comment:
German entrepreneur says he is 150,000 miles into a 1 million air mile target . Scheme involves buying gift cards with air mile-linked credit cards , and immediately liquidating the cash . Comment: