Let us start at the heart of all start up ideas, what is there a need for that is not currently being supplied or that has not been fully realized upon. When you find a niche that you can supply a demand for that no one else is supplying or that no one can supply in high demand you have found your money maker. A lot of people become successful with startups no one ever thought they would need in life. The hardest part about a startup is not the idea, the funding or finding the niche. The hardest part of a startup is getting the advertising out there and picking up interest. That's the difference between Nikola Tesla and Benjamin Franklin. Once you have found your niche bring it to the market in a revolutionary way that will catch investors eyes. Only then will you garner the respect of your peers.