I'm always skeptical about guys who brag about 40-50 fish per day. I suppose it happens in certain instances, but my gut says it can't be that often. I've fished most of my life, and I now fish quite often with a very experienced fly fisher, who works at a local shop.
We both get skunked our fair share, and a few nice fish will always make our day.
Some of our best outings have been fishless. For me it's the journey, not the destination. I just got back from the Eastern Sierra for a one-week trip. The bite wasn't as hot as I expected, but we did catch some fish. Probably the best part of the trip, aside from the cameraderie, was watching a bald eagle dive into a lake and grab his breakfast...I got skunked that morning, by the way.