Vegitables are one of the foods expatriates tend to eat less in Thailand. Thais do not care about the consumption of vegetables. It is not a wise choice to follow their custom. (I think that Filipinos are more extreme when it comes to the consumption of vegetables.)
So, I occasionally bought this salad at a supermarket (Tpos) on my way home after the work. In 2002 it was Baht 20 but now it is Baht 30. Because of the depreciation of yen, the yen price has soared from Yen 57 to Yen 111.