I plat mainly because poker is specially challenging brain excercise and training. We must focus on everyhing that influences ourconcentration, state of mind and emotional control. This way we are forced to identify all the factors, and learn to eliminate all the causes that are affecting our state of mind, emotions, ideas and reactions in undesired ways. This way we build our mind discipline very efficiently. Also poker is a game that requires really advanced logical analytics of every single moment, situation and forming of our tactical plans for next moves. This is a great way to train your brain performance and also makes you repeatedly exercise fundamental principles of thinking process which is the principle utilized not only in other demanding tasks like maths, programming, designing, problem solving etc., but in general these practices are subconciously applied in the most humble everyday life situations, thus effectively making our life better because we are improving our most basic logic and decision making affecting our deeds every minute.
The motivating factor for this benefiting poker effects is for me the competition of other players, that drives me to improve and exercise my best effort to beat them.