I think the key to success for the MFDB makers is not so much saving money on the cost of components as growing the demand (and sales) for their product. With Leica and Pentax entering the MF marketplace a static demand will result in reduced market share for Hassy and Phase/Leaf. That's not the kind of scenario that lends itself to spending large sums on R&D to develop the latest and greatest technology.
Setting aside talent segregation, I think this is it in a nutshell ... this, and Mike's notion of specialization.
There is obviously a growing proliferation of highly capable 35mm DSLRs and even P&Ss, and a fascination with more and more automated do-dads.
No where is that more apparent than with portrait and wedding photography. Fundamentally, what was once relatively specialized, and dominated by the ubiquitous Hassey and Bronica, first went 35mm, then became over-run by almost anyone with a Canon Rebel and zoom. The "rich" slice of the pie has shrunk, so that experienced shooters fleeing upscale from the "house-wife and unemployed pool with a camera", now are slugging it out for the crumbs.
Reportage has been incredibly impacted by this proliferation ... citizen reporting with digi-cams, cell phones, etc. That, and the demise of the printed form.
Commercial work has not been immune to this ... not necessarily the higher-end, but more the traditional "Bread & Butter" work that helped support a mid-range studio infrastructure. Even the "In-House Photographer" is no longer a dedicated pro, but rather an employee enthusiasts with a decent 35mm DSLR and "Strobists" knowledge.
The common element to all this is a wide-spread believe that these easily acquired technical solutions are just as good as more specialized solutions. Even hordes of experienced photographers believe this.
This factor is heavily promoted by the great equalizers ... consumer computer screens and the internet itself. A 60 meg, big sensor, 16 bit file processed in specialized software using data rich colorspace reduced to a sub one meg 8-bit file in a heavily truncated color space. :wtf:
Landscape and art photographers have a clearer path than most. Generally, the final expression is in printed form ... usually larger where all the fussy stuff becomes apparent to even an inexperienced eye.
I found this to be true even in my business where acquiring new clients has become difficult at best. Swim upstream by dramatically demonstrating better prints. I swapped out services with my local consumer lab and now half of their album displays are my work (mostly high-end MFD or rangefinder work) ... 12X18 and 20X20 albums have garnered a huge amount of feed-back from clients of the lab and has resulted in higher end inquires.
IMO, the point is that the public or client base has to be educated, and has to see the difference in the flesh.
Of related interest, at my urging, a friend investigated MFD to move upward from his Canon gear ... he ultimately rejected the notion because he couldn't see enough difference for the money spent ... I know for a fact that he never made a print.
-Marc