I took Russian back in the 60s. I also took Latin, which was useful when I was assigned to teach Medical Terminology and I had little knowledge of it. While Russian was fun (my best friend was also in my class and when we wanted to talk to each other in front of my parents about something "private"-think teenaged girls-we annoyed my parents by speaking Russian). However, so many people where I live speak Spanish (in this area, you can survive speaking Spanish only your whole life), it would really help.