Am not sure how many in this forum are following old threads, but here is an update from me.
I am now totally out of 120 architectural photography using Fuji GAs and GSs. My decision was taken at the end of last year (2016) after a health scare which fortunately for me, turned out to be just that - a scare, more a forewarning of what may happen in the next few years as inevitably I creep into my 70s and have to scale down my wanderings and photo excursions. A sad time for me, but life is haphazard and often unpredictable, and this situation will come to all of us, sooner or later.
This, and also the high cost of 120 roll film in Australia. I know I could order in bulk from the USA, but the cost of postage to Australia from North America is now too expensive, that it has eaten into the $$$ savings I could once get by ordering film OL from other countries.
So the reluctant decision was taken to give up shooting 120 roll film and especially 645, and go with 35mm and also other mediums which I won't go into.
My GS is now on permanent loan to a friend has the disposable income to go on buying 120,and is usingmy camera for his general photography. It's a fine camera, but somewhat too flimsy and plasticky for my tastes, and also too light.
I've sold my two GA645s (the broken one was repaired for a reasonable cost ex Singapore). I made a small profit on the GA645wi but lost a little money on the GA645i, so in the end I came out about even, financially.
I also sold a Rolleiflex TLR and my Hasselblad 500CM last year, for good but not inflated prices. Nowadays the 'blad buyer would likely see a profit if he resold the camera on Ebay. Not sure about the Rolleiflex, possibly Rollei TLR prices have leveled out since 2017. Certainly I see much less quality camera gear on Ebay and in the photo shops than I did a year or two years ago, and prices seem to have stayed quite steady. As can be expected, many Ebay sellers put ridiculous prices on their too precious gear, and then add a Make An Offer button, but the stuff seems to get passed in. Definitely it's more a buyer's market now.
Notwithstanding the high film costs, I've kept three Rollei TLRs, more for sentimental reasons than for use, a near mint condition Nettar 6x9, and my cherished Voigtlander Perkeo I kit. All of which I intend to use again, some day when time and other commitments allow. Whenever...
I've noticed prices for MF cameras out of Japan have gone up quite dramatically in the past 12-18 months, possibly as a result of niche market photographers who are buying at whatever prices the sellers want for the gear. In Australia, very few GAs or GSs come on the market, whether in secondhand shops or on Ebay, and the one and only GA645z I saw for sale was locally in 2011. Maybe the Fuji MF cameras just didn't sell very well here as new equipment, A handful show up on Ebay every year and they seem to sell, but the local camera shops (in Melbourne) almost never have them.
On the other hand, 1950s MF folders like Zeiss Nettars, Agfas and the "odd" German brands seem to be selling well at quite good prices on Ebay. A few years ago I was happy to get A$70 for 120 6x6 Nettars, but now sellers are asking upwards of A$135 for even average quality cameras. Time passes, inflation hits. So it goes.
The problem with MF, at least in Australia, is film prices which are going up and up, with a predictable decline in the market. Eventually rollfilm sales will flatten out, and we will be left with only a handful of film manufacturers who can then (and probably will) charge what they please for their products. Sad but that's how it is.
The danger as I see it, is that we may soon see the virtual end of the film MF era, if we are not proactive and buy more fresh roll film, but also if the film manufacturers and retailers stop trying to gouge us by charging prices so excessive as to make 8, 10, 12 or 16 exposures uneconomical. Both sides need to compromise and meet one another half way. Will it happen? I am hoping yes, but then I'm not holding my breath...