Earning a degree is a good thing for some professions. After all, you wouldn’t want a doctor who learned his trade via YouTube videos taking out your appendix, would you? Of course not.
But for other professions, you can learn just as much, if not more, than a college curriculum’s worth online for a fraction of the cost. Search engine optimization is one of those things.
That’s not to say there’s no value in an SEO specialist earning a degree – any education is a good thing, particularly if it’s in a related field like computer science, marketing, or communications.