Domestic trade, the order size varies, and customer payment is also troublesome, sometimes there will be the phenomenon of delinquency, to get a domestic trade customers is also to put a lot of effort (in which aspects of effort, this depends on the company culture).
From the long-term development point of view, if it is its own brand, domestic trade will be more profitable, there is a lot of room for market growth, coupled with the country's guidance on the development of domestic trade, or can be very useful.
In short, the comprehensive industry situation, personal career planning to consider it. There is no absolute answer.