Hallo Catsse,
I think "advertisers.tv" is only worth mid $x,xxx. It's a good domain indeed, but
not as valuable as it seems to be according to the asking price at GreatDomains.
First of all it's only a .tv domain. Sure, the TLD fits to the keyword, but I'm
sure that the domain does not get so much visitors by itself that it's worth
the five figures. .TV domains are no type-in domains by nature. Your domain
would increase in value after some development though, because advertisers.tv
really has got a good potential for an advertising business. However, in this
case the singular version would be better, in my opinion. The price estimate
stated above should be in between the reseller price and the enduser price.
Good luck with selling your domain!