Panasonic announces Leica DG Summilux 15mm F1.7 ASPH, and GM1 kit

You are wrong, mostly. An slr w/o any electronic parts, no sensor, used to cost more than the basic ones do today. The difference wqs that the top dslr still didn’t carry much technology, besides the OPV and the shutter mechanism. It was, therefore, not much more expensive than the basic models. Think Nikkormat and Nikon F. As technology evolved, especially metering and AF, things started to get more complicated. Todays cameras use so much technology and the sensor/ADC system, which was then the film.

Think of how much you spent in film, film development, printing in those days, and you’ll see camera systems today are less expensive in the long run.

Source Article from http://www.dpreview.com/news/2014/03/24/panasonic-announces-leica-dg-summilux-15mm-f1-7-and-gm1-kit