In certain driving modes, hybrid electric gas cars offer you no better fuel efficiency than standard cars. Also the fuel efficiency of Hybrid cars and SUV's works counter intuitive to what you would expect. Your gas mileage could be more volatile with a hybrid vehicle due to the way it operates in different driving modes, and how much time you spend in each driving mode. In some driving modes, your fuel efficiency can be better, and in some modes your fuel efficiency can offer you no benefit at all.
Simply put, the added price of the vehicle out ways the fuel savings unless you keep the vehicle longer than 8 years...... Keep in mind car manufacturers are building cars to make "profit". Its up to you to decide if a hybrid is right for you.