If he wanted to sell items to players, he woulda done it the first time he was a GM. Items used to cost much more back then.
Plus, if he was in it for money, then he wouldn't be such an active GM. He'd just be one of those lazy ones that don't do much, and just sells items in the background. Cali is actually going out there on a branch and trying to be really active and helpful. Seems kinda counter-intuitive if he's doing it all for money :P