On the ground feedback is vital to your startup success. If you’re running a company or have an idea playing around in your head, what better way to test it than going to your intended users and getting feedback.
The easier route nowadays is to create a Facebook page, a prototypical website or mobile app and test user activity. That is good. However nothing beats talking to actual customers and see if they will pay for a service or product you are planning to launch. Because if your end users like your idea but would not pay for a service that you are offering, then you need to tweak things.
Make a product or service that makes an impact and brings the cash.