For many Millennials saving for retirement has become a binary choice. Either they choose to pay down their student debt or they choose to save for retirement. Either one or the other. As many Millennials are in the earliest years of their working careers, difficult choices about how to allocate their hard earned paychecks must be made. Therefore, for many Millennials, paying down their student loan trumps deferring into their company’s 401(k) plan.