Double Major in Marketing and Computer Information Systems - Is it worth it?

Currently, I’m an undergrad student at Cal State LA. I’m a Marketing major but I’m thinking about picking up a second major in Computer Information Systems. I have 5-6 years of retail sales experience and will most likely work full-time for a consumer electronics company once I graduate. If I decide to double major, I’d have to take 8 additional courses because most of the courses between the two overlap. I’m almost done with my Marketing classes and would have to submit my graduation application by Nov. 19 if I decide to NOT double major. Would it be worth my time and effort to double major in both of these majors? Thanks in advance