I think looking up what a market crash is and realizing that it cant happen in this video game economy would be a good start. your perception of a crash is a market getting flooded with supply, and therefore a price drop, which is actually merely an increase in supply. this is not an economic crash, and in many cases due to affordability results in a better economy. Now if your personally hit and realize the money you could make off of x has decreased you may be disappointed that the supply has increased, this however means little to the economy and more to you.