if you come from the US, it's not so cheap anymore. A drink in Soi Twilight, the off fee and a boy for a few hours will easily set you back a few hundred US$. Add the cost of a decent hotel (not some crappy place in Kaosan road) and good food and you can easily spend fivehundred dollars a day. Of course you can get by with a lot less, but I wonder if that would be a fun holiday.