Re: Buying fly rods used, or not?
The main aspect of how graphite rods break goes like this- they break basically the same way glass does.
To get glass to break easily along a given line, you need to score it. This is how graphite rods break as well. (and why I cringe when I see rod tips scraping on a tailgate.) So like others have said, its very realistic to get 20+ years out of a graphite rod with no change in performance, but if it gets knicked, even a little bitty bit, everything can change.
What I do is only spend over $100 on a used rod if the original warranty card comes with it. Otherwise, you may be buying a knicked dud that may not be good for long at all.