Actually, I like to take workshops from top photographers at least once a year.
I've been leading workshops and teaching digital imaging classes for several years, and it's helpful to see how others do it, too.
And it's always great to meet new people; other photographers' workshops have been a great networking resource for me.
Plus it's just a whole lot of fun
And I have to say that, from what I saw, JP Caponigro's workshops are really first-rate.