One just went on eBay with two modern lenses for around $1200, which strikes me as a real bargain, but maybe that's just because there is less of a market for 5x7" than for 4x5".
It does seem extraordinary to think of anyone using it handheld with the rangefinder, in which case you might as well get a field camera with more movements.
It only needs to be held steady for 1/50 of a second, which is the fastest shutter speed on that thing. After about 5 seconds my arms start shaking anyway...
It's not that heavy; only about 14 pounds - plus another two pounds of lens!
It was fun to have tried it, but I won't do it again. Soon, at least