Excellent point regarding financial transactions. Thanks. Anyway, I've found an individual proxy server of my own now.
Hmmm, I checked out one proxy server, gave no information (except of course what they grabbed) ended up with five popups and am now virus scanning the computer, cleaning cookies, etc. etc. So I'd say unless you know a proxy site is safe, don't even go there.
But speaking for this editor, there's nothing wrong with a proxy server or posting a link to one. I don't see anything even wrong with getting the concert in the US this way--other than the danger to one's own security.