You know, I think when I was hired, I went from 3 weeks of vacation to 2 weeks... and I didn't even think about it, because I was too busy dealing with the fact that they didn't want to pay me anywhere close to what I was making before. Which was, by the way, a below market salary paid by a startup, to begin with! I finally got them to meet it with a "hiring bonus" that would match my previous salary for the first years I was there... I left before that ran out.

Other mistake I made-- I'd been working for startups for so long, that I really, really wanted a nice, stable job, where I would be able to put in 40-60 hours a week, and leave my work at home. That's something they pitched me on, too. So, I compromised... I figured, less stress, a little less compensation.

Turns out, it was much more stress. Even if your hours are lower, really bad management can make your life terrible. (and it wasn't just my boss, it was pretty much the whole of engineering management, near as I could tell.)