Well, you can't really buy land in Thailand (unless you're thai of course) so money is not really the issue there, now is it? Actually, this is true for a lot of asian countries such as Cambodia, Vietnam and so on.
Why do you need to buy land though? If you're just going to retire just buy a condo.
Also, where do you get a deacent, new house for less than $500k in Sweden? In the middle of nowhere? Come on!