One of Thailand's famous scenic spots, China has a large population, but the surrounding commercial streets are relatively developed. It is suggested that shopping in the vicinity be cheaper than airport duty-free shops. Some duty-free shops need to be sent to the airport earlier than airport duty-free shops. After customs clearance, they should be sent to airport SLR cameras earlier. Although Thailand produces less than 10,000 SLR cameras, it is cheaper than domestic ones.