That's an excellent book. Traver was a character who was every bit as interesting as the crazy rides he built. I wish I could find a copy for a reasonable price. The current price on Amazon Marketplace is $100, which is too steep for me. I'm not that nerdy, yet.
Yea, I had to pay 75 for mine. But its in absolute Mint condition so it was worth it. It seems to be reselling for almost double that consistantly.
Wow Im glad I got a copy of it before it went out of print