Church work is just free advertising for your playing. There does come a limit to my generosity at times though. My own congregation, ie the one I regularly attend doesn't pay me anything. Not even during the high holidays of Christmas and Easter. Thus I go where I'm PAID on those days.
It kind of bugs me to be so mercenary but I need the money. And the church elders know that too. Besides they could always cut me in for the same dough the Methodists do but they won't.