I did indeed land my dream job, once.
It was 1984. I'd been a passionate computer hobbyist for over a decade at that point, so getting hired at a computer manufacturer was indeed a dream gig. I had a roomful of computers to play with, big ones with more computing power in their disk controllers alone than I had in my Apple ][. Access to every programming language ever invented. All the company-provided technical training I could absorb.
And a real internet connection! Just one, 9600 bps and shared by the entire office, but it hooked me up with dozens of people around the world who were into the same obscure stuff I was doing. This was before the advent of the World Wide Web, so searches were always an adventure. My employer was based in Boston so I got to go to MIT - no, not the university, the university bookstore. There I found books on the most arcane subjects imaginable, and a community of like-minded uber-geeks - I had found my lost tribe.
Fast-forward 33 years. Although the job I have today was made possible by those earlier experiences, the excitement is gone. My one-time dream job has morphed into something repetitive and dull. Part of it's due to the industry changing from seat-of-the-pants innovation to corporate market-manipulation. New inventions no longer seem like breakthroughs, just attempts to sucker consumers out of their money.
Fortunately, music-making is the most fun it's ever been. I am determined to NOT make a living at it, though, for I know that it would become drudgery, too. Prior to the computer gig I had played in a band full-time for 5 years, and at the end hated it. And it wasn't entirely because of Disco.