My wife is Filipino, and sometimes we give thought to retiring somewhere else later. The Philippines is not particularly attractive (even though her family is there), because the government is corrupt from the top to the very bottom, and very unstable at the top right now. So Philippines is not a viable option.
One thing in your post I didn't understand, you said in Thailand, a condo costs about $50K US, but you said your new 3bd home incl furnishings cost $30.5K. Why would the home be less expensive than the condo?
The condo is more expensive because it can be sold to foreigners who, as everyone knows, are rich. :)