I have not yet, I see that Cirque's touring shows right now have changed their "signature sponsor" or whatever. Used to be Amex, then VISA, now some database company or something.

I also haven't bought tickets yet. I'm still debating on heading to a show in Seattle in the next month or so, in which case if I can't find a good ticket I'll probably call/email VISA and then maybe a show this fall in Portland...