As you stated, the criteria are under section 7 of the act, and cost is one of the considerations. But I can say that at the end of the day, the witness protection program reports to me, and I'm the one who signs off on the admissions or the terminations. Cost is one of the factors considered, but since my time in the chair, never have I denied an entry because of costs.
On February 28th, 2013. See this statement in context.