When we go to Thailand we normally take $100 per day spending money on top of all accommodation and flights. We often stay in places where we are at club level so much of the food is available daily.
We also shop a bit, but not bring heaps of stuff back.
We eat heaps and enjoy the culture. We are off again in July for our 9th trip, our second with children.
I agree about Phuket, we haven't been for ages as it used to be great, but now it's not our scene. That said, Kata or Kata noi are both lovely spots. We are off to Hua Hin again this year, it's a lot more chilled but not as nice beaches there.
PS: we don't drink, but if you do I would say $300 per day as alchohol costs a bomb in Thailand, also remember that you cannot take duty free grog back to Australia from Thailand you have to buy it in Australia before you go through customs.
This post has been edited by carls888: 22/02/2013, 10:52 AM