I own a 1st edition of Arcology. It's dope. It's also outsider art. Here's what they don't tell you about Paolo Soleri: the only things he ever designed that got built were:
1) Ceramica Artistica Solimene on the Amalfi coast.
Prior to starting out on Arcosanti, he had about as much urban planning experience and training as I do, which is to say less than Veen does.
Arcosanti is dope - don't get me wrong. But an "arcology" it ain't. It's a hippie commune. The vibe there is pretty much "the Mos Eisley spaceport 10 years after the Empire bails." The inhabitants aren't aging, they're all in their late teens and early 20s. And they're not "building" Arcosanti, they're keeping it from sinking into the sand. The basic envelope hasn't changed in 20 years and the additions on Arcosanti aren't a part of any obvious master plan.
It's also worth pointing out that arcologies and "planned cities" don't have a whole helluva lot in common. Arcologies were envisioned as a way to free up farmland in a Rachel Carson Silent Spring future in which our choices were Soylent Green or Mad Max. We definitely have an attraction to big f'n buildings but we have yet to successfully justify one. Planned cities, on the other hand...
Well, things haven't gone smoothly.