1. The basic rule in Bangkok is that there are fake everything and buyers beware.
2. Never ever trust your taxi driver to bring you to the place you want to go for FOOD, SHOPPING, or ANYTHING RELATED TO AN EXPENDITURE (MASSAGE, RESTAURANTS, etc). This is inspite of giving them specific directions written in Thai.
3. The problem is, for every famous place, there is an imitation (eg the famous Somboon Restaurant versus the fake Somboondee Restuarant). All taxi drivers will automatically bring you to the fake places period (regardless of instructions in Thai / English, etc).
4. All fake places charge at least 5x - 10x the price of the original places.
5. I had a simple seafood dinner consisting of 800grams crab, 900gram Fish/Seabass, a fried rice and a plate of vegetables (Kangkong / Morning Glory). The cost came out to a shocking 7,000 bahts. The correct price should probably be only about 1,000 bahts in Bangkok.
6. Even the restaurant owners will lie to you upon being confronted. They will lie about the road / location they are on, the name of the restaurant, etc.