cooltouch/Michael:
I have an Epson 2450 and a Minolta Dualscan III. The real resolution of the 2450 is something around 1600dpi, that makes ~67% of the stated resolution.
If your 4990 scanner gives only 2000dpi real resolution then this isn't an improvement over 2450 (in fact it's going back - since the real res./hardware res. ratio is way lower than my 2450, at ~42%) and/or there's something wrong with your scanner (or your particular working style)...
The 2880dpi Minolta scans are way better than my Epson 2450 scans, naturally, because they're real 2880dpi scans.
Now, if V700 practical resolution is the half of the stated hardware resolution then it's OK for me, 6400dpi x 50% = 3200dpi. That makes about 10x enlargement, which is fine for my needs and also reasonable for any film/developer combination I'm going to use. (Mostly Delta 100, new TMax 400 and occasionally good old friends FP4 and HP5 in Xtol and/or Pyrocat MC...) OTOH, with 4990 I'm taking a risk since the practical resolution I need makes ~67% of the hardware resolution. In any case it's always better to have more samples per given area, as long as noise (due smaller micro-sensor size) is under control/manageable.
Phil:
We don't have refurbished stock here in Turkey, I will have to purchase a brand new one. And as I said before I already have an adequate scanner for the alternative tasks you mention, is it still a no-brainer?
Regards,
Loris.