Well, what do you think happens when everybody wants to follow their dream - become rich?What do you think happens when profit is based on 'what the market will bear?

What do you think happens when the most popular course in the USA is business, and everybody wants to go into business to make lots of profit sot hat they can have nice cars and nice homes?

What do you think happens when homes are no more seen as shelter but as an investment?

Add it all up, and what you will have is a situation in which, sooner or later, things will be expensive for everybody.