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.