According to Wikipedia:
Payday loans or paycheck advances are small, short-term loans (typically up to $1,500 in the U.S.) that is intended to bridge the borrower’s cash flow gap between paydays.

It is not always the right kind of loan for everyone, but there are those who may need cash right now and payday loans are the way to go. The convenience and the speed of the application contributes to its growing popularity, the reason for the loan does not matter, the fact that you need money now does. Payday loans are there to help tide you over during lean times. It may be a way to up your credit ratings especially if you have a verifiable income. Times are hard and sometimes you have no choice but to juggle money.