I think it also depends on how you are with languages. Is studying going to be a source of stress and pressure? Or will it be a hobby you enjoy spending time on? Also, what format are you going to use - classes, solo study, with a club or group?
I had to take a year of Spanish in college but I didn't have a lot of time to devote to it and I was constantly stressed about exams. Now I'm taking Chinese lessons from a friend and the experience is so different. There's no grade on the line and we're moving at a slower pace (one lesson a week), so it's way more fun. This wouldn't work if I needed to be at some level of fluency for an upcoming trip or something - I'd need to be taking way more intensive classes and I would definitely enjoy that less. So I think it's a ymmv kind of thing depending on how you go about it and what your goals or expectations are.