Inventors make a ton of money when the invention is needed and when the process is done properly. There are different types of inventions. Some inventions are more practical, making the everyday lives of individuals easier (pens for example), some inventions are simply for entertainment purposes (television), and some inventions are multi-purpose (educational devices that are also entertaining). In addition, some inventions are simply answers to medical problems, as in prosthetic devices while others are simply "improvements" made to existing inventions. As you can see, inventing something successfully can be done in many styles and through many creative pathways.Overall, though, inventions either succeed or fail, depending upon the need or desire for the product by consumers. Let's face it, if something is not needed or desired, no one will buy it, no matter how clever it is! Even Thomas Alva Edison (he invented the light bulb), failed thousands of times before inventing many successful products, as did the famous British inventor, Sir Clive Sinclair. One of Sir Clive's "famous failures" included an X-Bike that was a cross between a pair of scissors and a bike. Thomas Edison's