That actually sounds amazing. I'm not even Buddhist though that Religion has a lot of similarities of my own beliefs. I would actually enjoy seeing a Buddhist festival like that to be honest. :)
Bangkok would be nice to see the city life of Thailand, without feeling too out of place because of how many tourist go there on a regular basis. Though I would also enjoy seeing some things like you described.
If your still talking to me then, I'll probably ask you to show me around. :)