I absolutely agree. Over the years I've worked with many sharp guys that are 50+ and their experience always commands massive respect from me. People who dismiss the more experienced segment of the workforce are, to me, absolutely, inexcusably incapable of critical thought. If all one sees the glitz of the young guys at TechCrunch Disrupt and concludes that they're the only talented devs out there, I want nothing to do with that person in a professional capacity, to put it plainly.