We can wax poetic about challenging yourself, discipline, health, etc but I guarantee 95% do it for pussy, showing off to the world, looking tuff to other dudes. Thats it.
haha thats exactly what i said.
i like to play poker 1-2X per week. i wear a tight nike shirt with very short sleeves. no one screws around with me at the poker table, i get a lot of respect and 'flex' my muscles especially to the puny shrimps