I've been shooting Yashica GSN, GTs, MG-1s, etc. for well into 35-40 years. I probably own 5/6 of them, some I've refurbished and others I need to work on, particularly replacing the POD. Lately however, I've picked up some MG-1s which are generally considerably less expensive then the GSNs but produce fine pictures. I believe the MG-1s have a 5 element lens rather than the 6 element lens of the GSN, but as I check through some pictures I've put on line, I can generally tell which were taken on the MG-1. Three things they lack when compared to the GSN, no B setting, a 2.8 lens and the longest shutter speed of only 2 seconds rather than the 30 seconds of the GSN. But, you can't have everything. However, I notice that the MG-1s are now going up in price as well as the GSNs. But I've picked up some mint MG-1s for around $15-20, sometimes less than that. I generally take one with me when I'm in Russia and/or Ukraine. I think they're quite easy to clean out the viewfinder and sometimes have to resolder the lead wire to the battery holder.