Chinese people like to travel to DPRK.
Probably ethnic Koreans from China. There is a very large Korean community in North-east China numbering close to 2 million. There is even an autonomous area designated for these people in China, known as the Yanbian Korean Autonomous Prefecture.
In recent years, the national self-image of Chinese Koreans influenced by the intensive development of relations of China with the Republic of Korea (not to be confused with North Korea). This country perceive China as an example to follow, so that Chinese Koreans are proud of their national roots. Equally important is the fact that from South Korea to China sent more than 10% of all South Korean exports. China is currently the second largest (after the USA) the South Korean investments. Do you think they will support Kim Jong-UN?
For the Chinese, the political goals are more important than the economic goals. The Chinese would never prefer the South Korean regime over the North Koreans, because South Korea is one of the most important allies of United States in the region. In addition to that, Chinese companies own most of the mines and other businesses in North Korea. The Chinese government want this to continue in the long term.