What does it mean to exchange four green houses for one Red Hotel in the rich dad's investment guide? ?

For example, when the real estate price is right, you buy four houses at a price lower than the market price, and then rent them out, which generates positive cash flow every month, that is, rent. After five years, your four suites have all appreciated, from 300,000 yuan per house to 400,000 yuan now, so the money you borrowed from going out has a net profit of 300,000 yuan, and you can use this 300,000 yuan to invest in a hotel, so that you can earn a lot of money every month.