That's a good question. I'm not sure what is the answer to that question. I'll do some research in Google and get back to you if I got an good answer. You should email the people at iPage as they probably can answer it..
I should have stated that all other extentions would be registered..
I think that ccTLDs match the keyword may be valued more than the .com version...
Sure, VotersRegistration.com sold @ Traffic West for $6k. I think that VotersRegistration.US is worth more than the .com.....
Rarely would any other HostGator be more valuable than thie .com, even if popular. People instinctively type .com by accident even when the KNOW the proper extension. Therefore .com has that value as a traffic default. The value of another extension depends a lot on the size of the potential market. Cars.net would be more valuable as a percentage of the .com than something like manholes.com. The reason is the market is bigger and there is potentially more competition for the second name.
The two most important factors for non .com domains having value are:.
How valuable the keyword(s) is/are that the name consists of?.
How well the keyword(s) fit with the (non .com) extension?.
An example of the two extremes would be Austin360.com & Austin360.biz versus Diabetes.com & Diabetes.info; whereas in the latter case, the value of the non .com name is pretty high (one can actually argue/hope that over time it might actually become even more valuable than the .com version), the same cannot be said for Austin360.biz which is not even registered and is available for reg fee whereas.
Is a fully developed website...