I have no idea why you're comparing the EV1 to the Insight and Prius. The Insight and Prius are hybrid cars. That is, they have a gasoline engine and a small set of batteries to augment it, as an efficiency measure. The EV1 was a fully electric car, which is an utterly different kind of machine altogether, one which simply was not (and is just barely getting there now) ready for prime time.
Maybe because the GGP said that customers were to blame for the death of the electric car and I (and reality) was disagreeing with him. Good information, but I think all the reasons you listed are ancillary to the issue of after market parts which is the real reason we don't have EVs. GM is a very large company and while losing a billion USD is a lot, if they wanted to dominate the market, they would have pushed on. Instead they wanted to preserve the current business model. Understandable, but like I said above, against the public good.
"Don't try to outweird me, three-eyes. I get stranger things than you free with my breakfast cereal." - Zaphod Beeblebrox in "Hithiker's Guide to the Galaxy"