What used to be a self-pampering day by single university students in Nanjing, China, has become the biggest shopping spree around the world. This year, Alibaba broke its own Singles’ Day sales record by racking up $30.8 billion in one day. That means $5.5 billion more than last year! Looking at the number of one-day sale in one country, the Chinese sure are super excited with the deals and try to grab as much as they can with lower prices. To the world, the mega-success of Singles’ Day may represent not only the effect of a brilliant business strategy but may also paint a rainbow image of how Chinese singles…