I Know, but compared to my 35mm and DSLR's and especially my LX-5 it is a big brute.
Still I would love an SQA or other 6x6 beast, even a Pentax 6x7 (mmmm Yummy!)
But the GX680, I think that might be a tad too much.....
Still, as an introduction to the world of MF (ignoring my Rolleiflex that i did manage to get 6 shots out of before it stopped working and in need of a rebuild) the Bronny is a wonderful machine.
It really does make you think more with DOF control and light, whereas I come from a 35mm arena and used to the abilities. MF on the other hand makes you think even more about DOF, Barnacks rules, field of view and others. And you know what? I am loving it!