The bike isn't the problem on the roads, it's the general public's consideration of them. And like I said last night (on IM), more and more bikes will be on the road, forcing drivers to consider them more. The situation will get better.
If you start out, get a cheapo bike just to tool around in, and see if it really makes a difference in your life. If it turns out that you hate the idea, then no loss, no gain. Who knows, Kaori may even want you to stop riding (like Sue has expressed with me) in which case a cheapo-bike can simply go in the paper. Then you won't become addicted
Thinking of gas though, lets say you, Chris, and I were to take our bikes out to the beach one night for some cruising. 3 guys on 3 bikes getting 60 or so mpg. Now divide that by 3, and we could just stuff into the 4Runner and do it. In terms of saving gas, it only really works when it's just you and a commute, and you don't need a monstrous composite bike to do that.
-> Steve
There are other composites out there that aren't what you would imagine for bikes, like the
Vigillante (Yeah, $100,000) or the
Campagna T-Rex or this little .. thing..