Hi Andrew!
Think the "all in one thread thing" is both a blessing and a curse. Now if we could have an interactive floor map with all the sellers listed that could link to their specific spoils, I'd be more inclined to dig deeper. Just like at a real con, you can look at the wall books to see if that booth is worth diving into. If all I spot is moderns on the wall, probably a very low probability of GA/SA books and vice versa.
100% agree with the rest ! If all the other sales threads are shut down for that weekend and every dealer had their own booth in the VCC section (that operated like the traditional sales areas) along with excellent promotion on the CGCComics.com site, it may help sustain this tradition.
-bc