Originally Posted by
Buffalo Nickle
I doubt they hold enough to hurt them much since very few of their customers are using it. It could hurt them a little. On the other hand, if sportsbooks are using bitcoin, it has a growing demand which reduces the chance of it tanking. If people actually use bitcoin, it will not crash. Gambling can support bitcoin on its own. Any movement away from bitcoin is likely to be gradual and not that disruptive.
Coinbase and Circle will likely provide access to any alt currency that gains traction so probably not such a big deal for gamblers one way or another until the govt puts the crack down on it. Books will offer anything that becomes popular which will reduce their risk and exposure.
People holding bitcoin may be disappointed in its investment prospects if competition enters the market and people start using it. But they'll probably be the first to buy the other thing and dump bitcoin.