1.Boost your CV: These courses definitely provide you an edge in interviews. If you are dedicated enough, you can definitely master a skill which will open up new work opportunities.
2.Learn something apart from the default college curriculum- Online courses are much more focussed than degree programs, educating on only the necessary topics/ skills and leaving out the "general education" requirements.
3.Get financial aid for the same- The online courses also provide you with financial aid if you apply. So you can definitely pursue something you find interesting for free.
4.Online6 Courses are flexible with their time and hence you can finish them whenever possible. Also this makes it accessible to the people who works for full time in other fields.
5. Helps you discover your interests- Although taking a short term course may not seem as valuable as a certified degree or does not make you eligible for taking up a job in that field, It definitely helps you discover your interests so that you can finally train up yourself for the perfect job