I think vegas price will fit, because it is depends on what game that you will open. If only dice as domain, people will think if the gambling site is only for dice game. Actually Vegas is something that will think people if the site is accept fiat, but if open deposit with crypto will be very good.
VegasPrize.com is unique in many ways. I like the name a lot and it's one of those names you can't confuse with any other.