According to the National Center for Education Statistics, undergraduate tuition for public colleges has risen  42 percent since 2000, bringing the average cost of college to $14,000 at a 4-year institution. Even if your onsite school isn't a college, online courses are still significantly less expensive. This difference is especially visible when you factor in the potential savings associated with housing, transportation, books, and lost wages. In addition, because online training allows you to work while you're taking classes, you'll be less likely to take student loans and incur debt.
Flexibility

For students who work or who have obligations at home, leaving their job or family to attend class isn't always an option. While a traditional education is developed around a set agenda, online education allows students to cater their courses and homework around their family and work schedule. Thus, taking an online course will allow you to better yourself without having to sacrifice your priorities at home or taking days off from work.