Do I have to take risks?

Leave the risk-taking to the gamblers you refer to the casinos and bookmakers! The only risk you need to take is the small amount you spend on buying your site. Once you have your site up and running you do not have to spend any more money. You may wish to spend some money on marketing your site in the hope that you will generate more income, this is up to you. Once you have your site you do not need to speculate any money.

See related: What are the total costs?