I wish people wouldn't assume there's only two options - Generics or casting from Object/interface{}/void* It's a straw man argument. No experienced Go programmers are trying to say that's a good way to write code. The idea is to restructure your code so that basic data structures and interfaces pick up the majority of your reuse scenarios.
I'm no Go programmers, but I relatively often need to take a parametrized basic data structure as storage and write a parametrize class on top of it, while hiding the data structure because it's irrelevant.
Well, I guess I'll keep not being a Go programmer :)
