The mobile market continues to be a two-horse race for profitability between Apple and Samsung, with the two rivals commanding 109 percent of profits — a number made possible because its competitors are actually losing money in the smartphone space.

http://appleinsider.com/articles/13/11/14/apple-samsung-take-massive-109-of-mobile-industry-profits-while-competitors-lose-money

Bigger get bigger is the strongest trend in business these days. Of course in this space many times the leader (SONY, NOKIA) get's destroyed by a new product/trend. In other sectors the nº1 position is much more resilient. However the point is that all the money is made by the nº1 or nº2,  and that is almost a Universal rule. Better to be big than good.