While Netflix’ global numbers are impressive, most marketers don’t make global ad buys, choosing to aim different promotional messages in specific geographic regions, and media buyers in the U.S. have indicated that advertisers want to see the Netflix ad tier generate more impressions overall. But the growth in ad-tier subscribers has been sustained, which could spark new interest from Madison Avenue.Netflix, a company that once dismissed the concept of allowing commercials around its popular streaming content, now can’t seem to get enough of them. Do you think that Ad business is the next big thing ?