Every player has different preferences when it comes to gambling. Some may feel the same way as you but some may not. After all, what matters is the enjoyment that a player gets when playing and the fact that the player gains something from doing it. And yes, I agree that regardless of gambling techniques players do, sometimes luck may become hindrance.
Anyone that chooses a game entirely by the fun they can get out of it can do whatever they want as we know that each person has their own tastes when it comes to what they like in gambling, however when you begin to consider other factors dice begins to show its superiority, probably the most important and by far is the house edge, the house edge in slots is very high and that means that you cannot play as long in slots and that you are going to have fewer lucky days than with dice and that impacts directly the fun you get out of the games making dice in my opinion a better game for those that want play for a very long time.