The poker.site is a premium domain as they call it. I am not sure, but probably the premium is paid "only" for 1st year. Then you pay standard renewal .site price, which is single or double digits. At least I hink so.
Those premium newtlds exist, because the registrars do not want to give any {singleword}.newtld for free to resellers that would otherwise registered all the interesting domains in one second and resold them.
The pricing of those premium domains can vary registrar to registrar. There is some base price that the registry demands and then registrars have the surcharge.
Not all new tlds use the premium. For example .lgbt does not and is fully inclusive!
Jokes aside yes, this is full of scam and beware of another one: there are promo prices for registration that can cost as little as 1 USD for 1st year but then there are hefty fees for renewals. So once you start building a site on that domain you are literally extorted.
So always check while registering this bs domains even the price for more years. But even that does not mean that they will not raise your renewal price.
And that is not all - the premium domains are not possible to transfer away from registrar. At least I was not able to get out of name.com.
We are all bloodsucking ticks, hungry, devious
each one latched on to the ass of the previous
when the last and the first latch on it can be shown
ass-blood sucked by the first from the last is his own