How could a niche player have edged its way onto the top place in less than four years, leaving behind the two forerunners and online B2C giants РDangdang and Joyo, both with a ten-year claim on the turf? The answer is low price. China’s leading online B2C (Business-to-Customer) retailers have been locked in a fresh round of price wars as the week-long National Day holiday has triggered a surge of buying frenzy.