My SO went through a similar setup as the one described by the grandparent. Hers was ~15k, maybe up to ~17k by the end of the day, considering food and whatnot. I can't speak for her, but from my perception, the investment seems to have paid off: she's now working at a much lower stress level than before (her previous job was in high stress environment) and her salary and benefits (vacation time, perks like company-provided food and activities, etc.) have improved substantially. The job is also much more intellectually stimulating than her previous job. Given a couple years of experience, which anyone needs when changing a career, she could be making almost double than the cap at her previous job. All in all, she is way happier now than before.

Interesting that I got downvoted for this. Oh well.

My bootcamp was for data science, so not exactly comparable to software/web dev camps - but it cost me about $9k + living expenses.

And what bootcamp? This one sounds solid. Were the students around you similarly driven to learn the material?

Out of curiosity, what would it be worth to you and how did you come to that figure?