I was once told (by someone very smart) that the day you stop learning is the day you start dying. I know it was a snide comment, but I took that to heart when I had to get a heart surgery. I was always worried that I couldn’t pay back the loan or that I would never recover the cost. My wife asked me what I had to loose.
Came down to why not?
Why not? How about WHY?! At your age and level of your profession, what benefit could an additional degree bring? In my worlds, people stopped caring about degrees decades ago. Proven track record is all that matters.
There are free online classes from many of the major universities.