I liked them both, the book more (as it the case with most book/movie combos. I had a problem with the movie's faithfulness to the book, but all movie adaptations are that way.
I think that most of the "disdain" has more to do with the fact that there was a huge surge in the numbers of fishers, followed by a surge in the price of equipment. The surge died of, as surges do, leading to that age-old cause of disdain for those who got on and off the bandwagon. Prices stayed high, leading to further disdain for the wanna-bes who quit. Same effect for transplanted Californians in other western states. I was "lucky" enough to get into the sport about that time, like you, and I found that the disparagement was much worse for the noobs at that time.
"Trust, but verify" - Russian Proverb, as used by Ronald Reagan