There's an interesting partly related thread in the Nikon
thread on the other forum from a guy reporting on a big concert festival in the US that was covered by pro shooters from AP, Getty, Reuters, the New York Times, Corbis, Rolling Stone, Spin, and others.
While he did note that
none of the event photo-journalist 'pros' he saw were using APS-C bodies, he was most surprised to see that all the pros were using beat up and often pretty old gear - not the latest lenses or bodies at all. They stuck with solid tools that worked, and that they knew how to deliver results with in the field.
One message from that thread may be that if your current gear is delivering results that work, stick with it.
Last edited by rawr; 11-15-2014 at 04:38 PM.