Just as the SLR camera back in the 50's and 60's offered a modular chassis to suit different chores, the DSLR may still have that advantage with viewfinder options, focusing screens, quick viewfinder recovery (no LCD lag) and . . don't laugh at this . . . ergonomics. Yes, there is some benefit to a camera with some heft and feel, not to mention a certain robust construction that can handle field use.