I did an MS/CS (coursework-only) nearly twenty years after completing my BS/CS. After twenty years in industry, I expected to concentrate my coursework on desig

I did an MS/CS (coursework-only) nearly twenty years after completing my BS/CS. After twenty years in industry, I expected to concentrate my coursework on design, software engineering, and "practical" topics like bioinformatics. Instead, I found myself drawn to more theoretical topics, like theory of automata, and especially graph theory, and fell in love with the science of computer science. I don't claim this is causal, but my salary since completing my MS took a 25% bump and has stayed there and above since. YMMV.