Large photographic companies have decided that interchangable lens cameras will be the next big thing that pulls the wool over consumers eyes tricking them into thinking it will create a better photograph.
If there is/was one consitancy with film is that (for the most part) your sensor size was roughly the same. I know about 120, 620, 616, 110, 4x5, 5x7... wait what was I talking about? Oh yes, but I think we can all agree that since the 40s, 35mm really gained prominance as the film size of choice. A descision that only grew in the 60s and 70s once SLRs arrived. Followed by compact non-interchangeable lens cameras. This meant that over the course of 30 years, when you may have switched from 3-4 different camers, your images would reamain for the most part consistant in terms of look and feel. This of course provided that you didn't go from Kodachrome to Kodak Gold in the 80s. Either way, when you remove the sensor size as part of the magical equiation that creates an image you get far more consistant results.
However, now as we are in the digital age, (which by the way I dispise that term) we must keep coming up with excuses to get our images to look as well all fondly remember as children. There will be a point in time when all everyone ever knows is digital point and shoot images from Facebook, that reminds me if you haven't seen the infographic that compairs Facebook's image library to the Library of Congress's you need to look it up. The difference in size between the two is staggering.
For years then we were convinced that more megapixels would mean better quality images. Which in all honesty was true when cameras had 1.3 of them, but once we hit the 4 mark the differences were so neglegable that screaming "LOLZ OMG MY CAMERAS HAVE 18.3 MEGA PICKELS" didn't sell cameras anymore. Enter the Nikon N1. The latest camera jumping into the already overcrowded pool. A pool that is really one that nobody had asked for. But of course if the professionals use interchangeable lens cameras then it must be best for all of us right? Well if you are a true pixel peeper, sure you may get a few more lines per mm of resolution by switching from a long zoom lens to two smaller zoom lenses. But are the soccer moms shooting images of their kids at the park really going to do any of that? Of course they aren't, but it is another bragging point for them to talk about when compairing cameras with the neighboors.
I can understand completely that once you start to increase the sensor size the cost of producing cameras rises exponetially. Just look at the jump from a 1.6 crop, to full frame, to medium format digital sensors. Your MSRP jumps about 4 times with each step up in size. But if we could just start being honest with people and telling them that no matter all the bells and whistles that a camera may have on it, the quality of a photograph comes from you, not the camera in your hands.
I'm reminded of the old anecdone:
A photographer is invited to an upscale New York City party, filled with millionares and entrepenours of all varieties. As he walks into the loft the host stops him and says "I love your photographs, you must have a great camera." The photogrpaher nods and smiles and continues through the rest of the night without saying a word. When dinner comes to an end he stands up and politely says to the host "That was a phenomenal meal, you must have a great stove."
But then again all of what I was just complaining about involves work from the people taking the photos, something no one is interested in anymore. Shoot film, save lives.