Originally posted by mutedphotos The 1DsMkIII is more than twice the weight of the K-m/K200 (1385g w/battery). I certainly don't want to lug all that around. But if the K-7 comes in at around 600g, it would be lighter (and yet still bigger) than the K200, which would make it feel flimsy, IMO. Or at least it wouldn't feel like Pentax's top-of-the-line precision engineered flagship.
A Leica M6 is right around 600g and I'd hardly call it flimsy. My old Pentax ME Super was under 450g, and that felt solid enough.
Precision build has very little to do with weight. If you want more weight, add it in the form of additional battery grips, super fast lenses, or whatever. But please keep it off the body, unless there's good reason to have it there in the first place.