Unique advantage? Let's just say, the best advantage of online gambling. These are no brainer for those who are really into online casinos. What I liked 1st, convenience and availability. You can play it at home just using your laptop or smartphones or you can play it anywhere at home. 2nd is cost efficiency, why? I play Vegas casino, using bitcoin or crypto it offers low cost in transaction and deposit fees than the traditional casinos, the difference is very big. 3rd, great bonuses and rewards. Inarguably the reason why I like and switched to online gambling.