Captions were recommended to us by the school as a way for our first-grader to practice reading.

If you are concerned about your marketability, then put yourself on the market. Find out. Interview with some technical recruiters, or send your resume in for a few programming jobs. (You should have a few good recruiters in your network anyway -- the good ones are helpful). You don't have to actually accept the job unless it is better than what you currently do (yes, you need to be discreet about this with your current employer).

Employers are looking for people that can solve their business problems. They need people that can design, build and maintain their systems. The most convincing proof that you can do that is to have a track record of having done that before. Some employers may dismiss you, but it will be nowhere near 95%.

If the degree is a personal goal of yours, then go for it. But if it isn't, and you are just concerned about marketability, then I would make sure that the degree will indeed help with that. Also, keep in mind that careers take unexpected twists and may take you away from coding in years to come.