Discretionary income plays an important role in terms of investment.Many folks neglect the importance of prioritizing their discretionary income and face the outcome of accumulating their holdings prematurely.After all the basic necessities are met like food, housing, clothing and electricity bill,the left over money is known as discretionary income,which can be used to serve different purposes like traveling, saving and investing.Most importantly, prioritizing your discretionary income on investment eliminates financial stress and build a long term goal.It would be unwise for an investor to prioritize he's discretionary income on bitcoin investment without building an emergency fund.