La Cage doesn't have rush, but last row of the mezz are $25 and they accept credit card.
From what I understand, BKLYN's rush policy is very lax. They're just trying to sell tickets - as many as they can. IF someone goest to pay with credit card, I'm pretty sure they're not going to turn you away. They're taking anything they can get.
"If you are going to do something, do it well. And leave something witchy."
-Charlie Manson