It’s hard to find any fault with the Nikon D80. Only the mere existence of the Nikon D200 does it remind us what the D80 strives to be.
The upgrade path from both Nikon D50 and Nikon D70 is clearly the D80 with its advanced features and SD memory requirements. The only downside is that early adopters who have established workflow or enjoy working with NEF will need to wait for 3rd party vendors to support the D80 among other accessories that will trickle in over the next few months.. but it’s well worth the wait.