There are too many hybrid vehicles out there to warrent another one that isn't even advertised anymore. I haven't seen a commercial for the insight for years now. Toyota is kicking everyone's a$$, and there's already the Civic and Accord hybrids.
The S2000, like other sports cars, aren't practical. But it is a sports car, and that's it's place. I certainly don't see that going out of production any time soon.