You're discussing value; money and expense aren't relative.
Money and Expense is a relative term. $5000 for a headphone might be a lot to one person and not to another. How about $5000 for cigarettes a year? or $5000 for car expenses instead of taking public transportation and contributing to the well being of the environment. It is all just a matter of how the buyer wants to sacrifice.
I wouldn't need to give a damn about living expenses in Korea for years with that amount of dough!