Man is a terrible tool for quickly remembering how to do something I do once in a while. The examples—usually the most important part—are usually at the very bottom, if they’re even there.
The other nice thing about looking up options in the man pages is that you often see other useful options that you didn't know existed. I've found some of my favourite options this way!
I also tend to believe that if you read the options enough you'll be more likely to remember it.