BTW, Minolta has not been making cameras for about seven years. Are you saying Pentax is worse than a seven-year old Minolta 6MP DSLR?
As far as AF speed and precision, I think you will find the 645D giving all the MFD cameras out there a run for their money. Can you even tune the AF in say a Mamiya to specific lenses? Multi-point AF?
I understand the sales of the 645D have been very good. Certain their "attempt" has resulted in a modern MFD camera unlike their competitors that have done very little to update their models. In the MF world, the 645D is revolutionary, but that is maybe because of the low bar set by the competition.If it werent for samsung making clones and (receding) army of fans (specially in Eastern European countries, who had piles of m42 optics they like to reuse) who were waiting for 645 and still waiting on full frame 35mm - they'd be deader than dodo.
So revolutionary they are not. But it was good of them to finally make good on 2 decades of promisses and finally make attempt on MF market.
Naturally, Pentax was just sold to Ricoh and so we will have to see what that means. But at the time Ricoh announced that it was going to continue to pursue their MFD line.
And while we are at it, perhaps we can compare the Pentax 645D ISO 1600 (unbinned) and multi-minute exposures with the MF competition.