I feel like story of my move the Mac is not at all uncommon: in the very late 90s, when I was doing mostly consulting and not really any coding, my work life revolved around emails and office docs. Windows on laptops of the era was AWFUL -- long boot times, unstable/unusable device sleep, frequent crashes, etc.
I had a coworker using a G3 PowerBook, and his actual user experience was drastically better than mine by every metric (except, I guess, in that his Powerbook was significantly heavier than my super-sleek ThinkPad). Crashes were rare. Boot time was fast, but it mattered less because sleep actually worked.
I switched. Then the dot-com crash happened, and our company failed, and I hung my own shingle out -- and right about that moment, OS X happened.
My Mac went from being difficult to work on (for a LAMP-stack person) to being the IDEAL platform. I had a real bash prompt, on a machine that shipped with all the tools I wanted, and on which I could easily install most anything else (even if, early on, I had to build from source) -- and this same machine ran true Office, and had a host of really well-designed other applications and utilities that made my more productive and happier. It was a total win. And now, 20+ years later, I'm still here, typing on a Mac.
If OS X hadn't happened, then the work I had after the dot-com crash would've pushed me and a lot of other people like me to full-time Linux.