The most important thing that you need is passion. Any idea that is put into action can be worth money. But without passion there is no drive and there is no heart put into your idea. If you just want to sell a product for the money and you are not passionate about it, the customer will see your greed and not buy from you. When you are passionate, you have this fire in your eyes, making people feel good about themselves and encouraging them to buy your product. I will use myself as an example.

I had an idea for a website and just saw the dollar bills. Did I go for it?

No

The reason: I had no passion to do it. And call me nuts, but I still don't have a passion or urge to create a internet system (even though they are 10x easier to manage) I am not passionate about it, and my work would show. I will not get anything done and I will be unsatisfied with my work.

On the other hand, I have a huge passion and drive for inventing and bringing my own products to market. I get this urge and have this drive to keep doing and pursuing my dreams. I have a great idea (now product) that is a thinking out-of-the-box invention but is very simple. I have a huge passion and drive behind this product and I have been enjoying the entire process. From building my prototype, to meeting with attorneys to patent my product. There has not been one day, where I have not enjoyed what I was doing. When you have passion behind your business idea, you cannot be stopped, no one can bring you down.

If you observe an entrepreneur, you will notice that they are enjoying what they are doing. I have met many Lambo owners and one sentence that I can use to describe them : Living their lives to the fullest.
You rarely hear them complaining, instead they enjoy life and what they do for a living.

Most entrepreneurs don't feel as if they are working, they feel like they are doing a hobby. They are passionate about what they are doing and do not feel the stress that a normal 9-5 would have.