Roughly speaking we have spent $2,000 a month living large in Thailand, Mexico, and Guatemala; $4,000 a month living large in Taiwan and the US; and $8,000 a month living large in Europe and Japan. It's a big Choose Your Own Adventure story, and the cost averages out.
A recent big trip included airplane tickets from Hong Kong to London, Oslo to Minneapolis, and Seattle to Taipei. The retail price of these flights was over $7,000. We paid $200. Total.
When we were ready to have a child, we worked with an IVF doctor in Taipei. Our total outlay was less than $7,000. Friends in the US paid $40,000 to $150,000 with the same results. We've seen dentists and doctors in many different countries, and it has been high quality and reasonably priced.
I also employ a pretty aggressive long-term tax minimization strategy, which saves us thousands of dollars in taxes every year. With $100,000 in taxable income we pay $0 in income tax, legally and respectfully. It's all part of our plan to never pay taxes again.
Because we can choose where, when, and how fast we travel, and our total income, we can be where our money goes the furthest. Flexibility is a powerful currency.