It is always good to gamble with different coins.
Some users may have a high amount of Tron and may want to gamble with Tron.
Personally I see no much difference gambling with different coins, and I always prefer BTC myself.
Gamble in a different coins is a great choices of the gamblers for comfortabllity and availability of the player holding coins. But your cirrect I also prefer ti use btc in my gambling games.