Domain names are pretty worthless if you ask me, and this is coming from someone who sold popworld.com for $100,000. The fact is, you'll get a lot of incidental traffic from a domain name, but if your content sucks or is dated (and the old WoC was bordering on ancient), people have no reason to come back.
If you're wondering, rollercoaster.com is currently registered to Jim Serio, the original WoC guy. The record is updated August 3, so I'm assuming at some point that it was under Bob Coker's name (the ThrillRide guy) and transferred back to him.
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Jeff
Webmaster/Admin - CoasterBuzz.com
"From the global village... in the age of communication!"