What is your goal for getting a degree? Be honest with yourself, then figure out how/why to achieve it.
If you just want a degree to say that you have one, and to complete something that you started, that's OK. But the way you approach solving that (casual evening courses over the next 3-4yrs) is different from "need a degree to get more specialized job", in which case it may be worth a more focused study to get your degree ASAP so you can change jobs.
If you just want to learn more about other topics, or go deeper - there's lots of approaches that don't require formal education. MOOCs, self-study with text books, seminars/auditing classes, etc.
If you just want a degree to say that you have one, and to complete something that you started, that's OK. But the way you approach solving that (casual evening courses over the next 3-4yrs) is different from "need a degree to get more specialized job", in which case it may be worth a more focused study to get your degree ASAP so you can change jobs.
If you just want to learn more about other topics, or go deeper - there's lots of approaches that don't require formal education. MOOCs, self-study with text books, seminars/auditing classes, etc.