I have this fantasy about the "ultimate writing environment" small town, the more boring the better. One Dollar General with limited hours, a little apartment above an abandon video rental just off the highway. A mysteriously slow internet connection. No car. Just walk over the bridge to go to the store every day or write.
That said, I think this is a kind of mirage. The best place to write is ... now. Just before a job interview. On the bus. In the middle of the night when you can't sleep.