Because luxury is something we will never have enough of. Might also be due, to the fact that unless it is met, theoretically we cannot "not work" just yet. I

Because luxury is something we will never have enough of. Might also be due, to the fact that unless it is met, theoretically we cannot "not work" just yet. I would also speculate on why $30 a day. This evaluation is based on the costs of utility services, while those are hugely related to the overall average salaries rather than the cost of material [1]. I.e., the price of utility may and will significantly change, based on overall situation in the country. [1] - http://en.wikipedia.org/wiki/Electricity_pricing http://en.wikipedia.org/wiki/Electricity_pricing