I think the idea is that some of the new TLDs will be created as registrars who sell individual domains to third parties. So, for example, someone might registe

I think the idea is that some of the new TLDs will be created as registrars who sell individual domains to third parties. So, for example, someone might register .camera and then try to sell .camera domains to other people and companies. If, like .biz or others, .camera domains never catch on (i.e., if people who buy domains don't buy those specific domains), other potential TLD creators will be less likely to do so in the future.