You can always start your dice site with low bets according to your bankroll.
he just stated its not a dice site, but another gambling site thats towards pvp gambling.
i think any form of gambling is a good business as long people are addicted to that type of game. these days you can bet on e-sports for gambling.
PvP gambling is one of the hardest gambling sites to profit from though, that's why unfortunately you don't see many of them around. If you plan to run a PvP site, you will need very good marketing to get many players to play at your site.
Actually this PvP games is nice to play although they can't get big profit but people are interested in this kind of game because you can do it with other players, so its like playing poker but in different version. But it needs a lot of players to play if not this game will not work