Gambling is stupid (imho), period. People say it is fun and the times they win make it worth the losses they incur in places like Vegas. In addition, skill can help your odds in some games in Vegas. Pets in this game are gambling with no real way to increase your odds beyond the set threshhold of Level 10 odds- i.e. there is no skill. Play if you find it fun and can afford it. Or don't. Just wait til they give you pets for free and smash them together for no real loss.