How much can a new gtld be worth?

I recently registered the new gtld master.degree
Estibot tells me it's worth $15.000, but I can't believe that. I think it is worth less, since the word "master" can be registered in all of the new endings.
Has someone experience with evaluating the worth of a domain with the new extensions?

Don't believe Estibot, One of my domain it worth as $2400 but no one is willing to give me $100 for that.

One domain it worth as $0 but i sold it at $250

Your domain unfortunately don't worth as most of the end users don't even know about these new gltds.