Getting finance for a business idea is one of the most difficult task associated with starting a business. Every method has its set of pros and cons. For instance, if you take up a loan from a bank, it will result in an interest burden and you will also need to put up a collateral for it but you are free from other obligations. And though the investment of the independent investor comes without such riders, it results in too much influence of the investor which might harm the business. So, It's recommended you weigh up the pros and cons of various methods and then make a decision.