The prospect of better health is a major reason for quitting, but there are other reasons, too.
Smoking is expensive. It isn’t hard to figure out how much you spend on smoking: multiply how much money you spend on tobacco every day by 365 (days per year). The amount may surprise you. Now multiply that by the number of years you have been using tobacco and that amount will probably shock you.
Multiply the cost per year by 10 (for the next 10 years) and ask yourself what you would rather do with that much money.
And this doesn’t include other possible costs, such as higher costs for health and life insurance, and likely health care costs due to tobacco-related problems.