It all depends on your definition of fun, and your personality type, I guess. I always have fun at launches. There's nowhere else I'd rather be on launch day. Whether I am launching my own, or helping my kids, or helping others, it is fun. I enjoy recovery, even if it is a long walk. It's just nice to be outside and unencumbered by the cares of the world.
But there are times when it is very disappointing, like when my $1000 rocket burned up due to a motor cato because the nozzle was too small and I didn't think to check it. I can't say, "Oh, that's awesome! How fun!" But likewise, it doesn't make me get nasty or mean to others, and I don't quit. I come back next month and try again.
I don't need to run all over the field and try to catch rockets in order to have fun. Maybe if I were 20 I would. But at 51, it is intellectual and social fun.