Lots of comments here about tradeoffs between having fun and working hard. I'd say work hard, but take a year off every decade or so and just enjoy it.

Personally, I find it hard to get away from work, because getting away means changing mindsets and changing mindset takes longer than 48 hours or even a week of vacation. If you've ever quit your job voluntarily and lived in another country for a bit, you'll know what I'm talking about.