That's reason number 1. But, I ask you to name a single arcade on WDW property with a claw machine left. As far as I can tell, they have all been removed, as have all skill games including ticket games. (They actually still have some ticket games left at Art of Animation, but without giving you tickets or prizes, sadly.)
Seems to me that Disney is soooo against gambling in Central Florida, that even their arcades don't offer prizes. Wellll, try to have a Pizza Planet without the Claw, I just don't see it happening.