I'm coming from a Sinar e-75LV(Sold) and now a D3x.
No regrets so far.
Yes the Sinar files are larger,but for me that's where it stops.
The D3x is the current king of the DSLR's
The larger file is far from where the only difference is.
I have a D3 and a H3DII-31 and the difference is huge on a big screen
and a little less huge on print :-).
I also was, at one point, skeptical on the difference between a good DSLR and a MFDB.
Not anymore!. It IS a difference and not because of the larger files.
Its the colour, the contrast, the microdetails and the not so easy to explain.
Some doesnt see it and some does. And that is fine.
The ones that doesnt see the difference - go with the DSLR. It is cheaper and faster.
The one that does see the difference and think it is worth the price difference - go with the MFDB.
The most important thing is that most of us wants to work with the best file we can produce
and if it takes a MFDB to see and feel that - so jump in. If not - save your money.
A lot of us are not satisfied until we think it looks good to our eyes - not only the customers.
Only my 50 cents on this topic