No, the discussion I was having was about 1D vs. 1C performance late into their thirties in context vs. their contracts. I'm not saying they weren't effective players, I'm saying that production is a bigger component of a forward's 'effective' play and that their compensation should ultimately be commensurate with their role.
Sundin WAS a 1C even late in his career, similar to Kopitar. I'm on board with that even disregarding Sundin's early career. However, Thornton is arguably not a 1C even now, and no one is talking about giving him a max contract, and so on. I'm convinced that guys like Kopitar, Bergeron, Toews will play at a high level into their 30s, but having a 50-pt center is not first line production, so people have to be able to see that argument.
And to be clear, it's an argument I disagree with, I think Kopitar is STILL going to consistently be a stronger player later on, but it would be foolhardy to disregard that many years of history and examples of elite players tailing off in order to give him a max contract. In fact, if I have a little more time this afternoon, we can probably go back and look at their contracts relative to their peers at that point in their careers. I guarantee it will be more reflective of who they are at that point.