Todd, I have to respectfully disagree; the photos in several "state books" (VA, TN, SC, and some others) stand out, and at least two of those were all shot on slide film, through substantial effort and expense.
I'm glad you pointed this out Dave, because what I wrote reads pretty disrespectfully, and I apologize for that. I too have a deep appreciation for the time, trouble and expense with which those earlier photos were taken, and I did not relay that in my post. Perhaps an analogy to music is appropriate to convey my thinking... Those photographs are The Stooges, The Modern Lovers and Bowie. What we have now is mass consumption, maybe something has been lost in the creativity, but the fidelity of "signal" among the masses is improved (although thoughtless posts like my own work against that notion lol). That results in more consistent interpretation of the subject, but is not implicitly "better", I still listen to the Stooges. "Look out honey, cause I'm using technology..."
However, I will argue that the technology has improved orders of magnitude, perhaps most, and in what I left out, in printing technology (both print and layout). I'd be curious to see what the VA and TN photos looked like using current printer techniques, resolution, and saturation. I think that's where 75% of the difference in what we see on the screen from the photos getting post here and what ends up in a book exists. I haven't looked at the SC book yet, but I'm imagining that if Fritz used old slides that he took, they look absolutely amazing in print. I'm going to guess it's as sexy as the Fishes of the Middle Savanna. Grabarkiewicz got his copy of the new Ontario book, and he said it was amazing. So perhaps the propagation has begun.
The other 25% I think is in flash technology, and this may be where the contemporary photos have what seem to be a little bit more luster. Saturating the fish's color makes all the difference. The arrays you guys are shooting with are just amazing. Don't discount that affect.
And that's really all that I meant by the Thomas Standard

Again, I apologize for any implicit disrespect, it's not what I think, it's just what I typed.
Todd