Oh yeah - just drive out in the desert-boons anywhere between Phoenix and Picacho peak.

There's full on mcmansion ghost towns out there. You'll find occasional exits not really marked off of the the interstate 10 and if you follow them they lead to fully developed "shells-of" communities that are dead as a door-nail, wide streets / islanded that got fully developed but crashed hard after the dotcom bust before people could buy them. They are just eerie desert areas now. Perfect locations for slasher/psycho movies to get filmed.

There was a big real-state development boom in the late 90's in the Phoenix\Tuscon stretches, and after it crashed, companies and their contractors flat out went out of business and were abandoned en-mass. There was a big push closer to Phoenix, because they were trying to lure snowbirds away from Miami-Beach and into the new "Sun City" style plannnnned-communities. Becasue of that, the ghost towns are bigger as you get closer to the city.

There are also some massive trailer parks in that area.

Oh hell ya - whenever you see an old episode of Cops filmed in Maricopa county (Sheriff Joe's old digs) it's always in one of those county outlying "mobile estate" parks. Pretty much a lesson in what mass quantities of crazed biker meth with a touch of inbreeding does.

They also have some pretty massive snowbird dominated RV Parks out there as well. I haven't made those twice a week drives from Phoenix to Tuscon in a while. I wonder if "Rooster Cogburn's Ostrich Ranch" is still there.

It's still there, but here's a tale of The Great Hot Air Balloon Ostrich Stampede that almost did them in.

McMansion is a popular term in Australia for some of the cookie cutter houses built in new development areas. Tiny land sizes, no backyards, every third house looks the same, etc...

I've heard it applied to silicon valley. The first bubble in around 2000 had a lot of those popped up, and they were fairly well hated.

I coined the term in 1990

I thought that was Glenn Beck.

I've heard it here in California at least as early as the '00s. We usually use it to describe the huge houses out in the country that aren't build all that well. Like you sold your condo in LA for a million and build a McMansion out past San Fernando for 800K. But that might be bent by local gravitational influences.

Isn' this. . . "old?"