It seems to me comparing DAC-V1 to nDAC/NAC202 is somewhat missing the point. It all depends on where you are starting from.
If your starting point is DAC-V1/NAP100 then the obvious upgrade is NAP200, or higher (refer to previous posts on this forum).
If your starting point is NAC202/NAP200, and you want to add digital capability, then a cheaper, sub-£1,000, non-Naim DAC solution may be more than adequate in meeting your needs.
DAC-V1 is a very capable "digital" pre-amp and may well "punch above it's weight" when carefully matched with other system components.
Dave