Originally posted by Asahiflex I think you are completely wrong. If that was the case, cheaper Pentax models with a pentamirror would not exist. I'm inclined to say that the finder is one of the most expensive parts of the camera (the other one is the sensor). Nowadays anything mechanical (especially small parts as found in our cameras) is very expensive to manufacture.
My understanding is that the sensor is the #1 cost and the shutter is #2. Is any top camera using an electronic shutter?
I have not read anything about the cost of production differences between SLR and MILC, but I suspect the differences favour MILC, but not by a large amount. Both systems have to go into an alignment and calibration vise.
A long time ago I stated that one of the benefits to DSLR's from mirrorless is that, as the price premium for DSLR edges upwards, the tendency may be to upscale the DSLR in features. So bye-bye pentamirror and hello pentaprism.
The financial dynamics of the camera market has always been based on withholding affordable features from price points. OVF with pentaprism will become a higher price point.
I routinely see low-end Canikon's here for C$429 in kit, but as low as $329 on sale. They are cheaper than many P&S. Nikon is even manufacturing and promoting the non-VR 18-55 to keep prices low. The new Nikon J1 is $200 more than the lowest end Nikon DSLR. The Panasonic Lumix GF2 is $150 more than the Nikon D3100 kit.
They would not make and price them such if they did not sell. What is commanding a premium in the market is not the larger sensor, but the size and aesthetics of the smaller system. For the time being and the next few years, I still see DSLR's sitting alongside mirrorless in comparable price points. The DSLR's will have many advantages as technical cameras (sensor, OVF, PDAF, backwards compatibility, flash systems) but are bigger. I still think they will sell and sell well.