Since it sounds like your objective in CS is primarily career oriented (i.e. 'to make myself more employable'), Lisp probably won't offer you something you or t

Since it sounds like your objective in CS is primarily career oriented (i.e. 'to make myself more employable'), Lisp probably won't offer you something you or the majority of your future employers are likely to value. You will occasionally come across an employer who will be looking for exposure to less mainstream languages/concepts where their absence will be a negative, but that's going to be a minority in the job market if that's your focus.