It is not mathematics instead it is accountancy that is the problem - profit is the bad word you are grappling for.
Originally Posted by madgardener
Kodak stopped doing 220 trix in 2010 (or there about) cause no one was buying it. Their 220 finishing machine may still be ok or sitting in a scrap yard being reduced to small parts for material recycling... Id suggest the latter, ditto Ilfords...
My fav retailer still has some 16x20 from last years ULF run, so some one ordered it and vanished.
Id buy a 16x20 camera if I needed one but I don't.
Film sales are still reducing in volume?
Digital cameras and CamPhones are getting cheaper. Most cam shops only sell digital cams, no second hand film cameras.
There are exceptions like Lomo.