I think the brightness and clarity of viewfinders is over estimated, especially for street photography. Two of the cameras I regularly use are a Zeiss Ikon Nettar and a digital Fuji X10 and both have notoriously 'poor' finders, but neither have distracting focus areas or other screen illumination and scales. An article once stated, only half jokingly, that early Leicas had such poor viewfinders only the best compositions showed themselves through it. I believe there's something in that. What's needed most for street work, is an instant appraisal of composition, not focus.