According to Travel Backboard:

Lonely Planet’s newly released ‘Best in Travel 2013’ names Korea as number three of the top ten destinations in the world to visit in 2013.  South Korea’s growing popularity with visitors to the country has seen a big rise in interest from foreign visitors in recent years.

With over ten million foreign visitors expected to visit Korea by the end of this year the word is out about Korea as a popular travel destination.  No doubt the popularity of PSY’s ‘Gangnam Style’ has added to this interest in Korea from around the world with over half a billion hits now on Youtube.

Lonely Planet’s endorsement of Korea as a great place to visit will no doubt encourage a lot more visitors from around the world to plan a visit to the country.  Lonely Planet mentions Korea’s great outdoors and recreational activities like mountain climbing, fishing, golfing and skiing as becoming more popular with foreign visitors as they get to know the country better.

Not so sure about this last part:

Korea is a country of inspiration, where you become one of the locals and truly experience life as it is for Koreans today.