I believe most games have divergence motivess and some games are most favorable to host a tournament on poker is the most suitable, I have witnessed a lot of poker tournaments on this forum and most time betnomi is among the casinos that have brought in the tournament and this also witnessed a low turn out from members here but may be as people are becoming more aware that there is so much fun in the tournament and the prize most times is mouth-watering.
Poker tournament always has some exciting rewards with them and there is craze for it that's why you see many players engaging in them because it's more of strategy based.You are right that betnomi has sponsored many such tournament and have personally participated in some of them but was not much lucky to win among experience players.