well, as a beginner, of course there will be something of value for you to learn.
But much later in the game, as the law of diminishing returns reaches it's terminus, what then?
What do you look for in someone now who you seek to learn from?
I find that the more years you have in and the more you have studied, the harder and harder it gets to find someone who can teach you something new.
And if you do find someone, it sure as heck ain't gonna be convenient for you! lol
That's why I exchange. I expect to learn from my peers now and I find it to be exhilarating when I learn something new vis a vis my own failure. Keeps me training anyway.
people who are aloof and play the master thing up just turn me off. I may or may not have something to learn from them, but their attitude precludes any opportunity of them having me pay them to teach me something.