Is a PhD in Science worth it?

[Mermaid]

PhD's in science often get assistantships, so tuition is waived. Whether it's worth the angst or not is totally dependent on what you want to do with it. I didn't get one because I think it would make me harder to employ. It can narrow your scope significantly. If that works for you, great.
I work in industry, and biology PhD's are handsomely paid in general.

I saw a very significant jump in pay when I got my MS in biology. I suspect it would have been even more significant if I had gotten a doctorate.

When I graduated high school one of the substitute teachers I kept in touch with was telling me how her husband couldn't find work because his degree was too advanced for a lot of the positions in the area. Pretty sure they ended up moving out of state so he could find work. Couldn't tell you what his degree was in, though.

That is precisely the reason I didn't get one. I was in a program to study reproductive physiology in livestock but decided that it was not going to serve me well, and I haven't looked back. I have played my career like I'd play the stock market--diversify.

In this age of job hopping and corporate cutbacks, it's proven to be a good strategy. That is not true for all, but it's true for me.