The anti-farang Thais love to pretend that domestic tourism is far more important than foreign tourism. Someone recently trumpeted that 75% of tourism in Hua Hin is domestic..
..well, maybe - if you count the hi-so brigade from Bangkok who come down to their beach houses and condos each weekend - everything they need in the back of the car, so many don't even go shopping let alone patronise restaurants and bars.
The amount of spending per capita by domestic tourists is minuscule compared to overseas visitors - even foreign backpackers, who they sometimes call 'bird shit' tourists - spend far more than the domestic crowd.