You mean the kinds of places PC adventurers go all the time? The kinds of places that DM's either read up on or invent for themselves --because PC adventurers go there all the time?
No. I don't.

All I'm saying is that my impression of Greyhawk was formed by reading the setting book and playing the classic modules.
There were laser guns in Steading of the Hill Giant Chief? Lightning-powered trains in The Lost Caverns of Tsojcanth? What part of the setting book describes advanced technology or teleportals that are located in every major landmark of the world's cities? Sure, there are magical/technological elements (and teleportals, even in G1), but they're not present to the degree that they are in Eberron, or even the core 4E setting.
To some extent, this is a matter of what you are interested in, so if you like the wahoo stuff then I suppose you can focus more on Expedition to Barrier Peaks, as opposed to the Village of Hommlet. To me, Greyhawk read much more like Fafrd/Grey Mouser than anything Dungeonpunk.
I didn't any time imagining what a hypothetical, non-adventuring dirt farmer thought of the World of Greyhawk (and then using that as my impression of it).
Well who did you imagine the life of? Was your campaign a series of unconnected adventures that began with a boxed introduction and ended with the division of treasure? Consider the effect that (as someone pointed out above) a system of teleportals would have on the plausibility of an adventure consisting of slogging through a trackless waste to reach a destination. So Gandalf and the group just teleportals their way to Lothlorien and picks up the adventure from there. Whether or not you or your DM considered these possiblities, I think they would be apparent (as would the differences between Greyhawk and Eberron) once you got into trying to make the setting work for adventures.
The World of Greyhawk boxed set contained information on plants, clothing styles, alignments, deities, and political divisions/size of military. What "wahoo" elements did you read about? Was there a single military listed as having companies of pegasus cavalry? Celene might have had some unicorn riders. But an army of robots?