I'm talking about the situation before the China buyout from September 2015, which gave chance to all extensions to become popular. Why .eu.com and .us.com died? Why .io is doing better than .co? Why .org is doing better than .info? They all seems to raise after becoming available, some small and medium companies who couldn't afford .com use them, and, at some point, some begin to decline, and companies abandon them gradually. What happens at that turning point? It's only about the issuer advertising budget?