Standard practice in the finance industry these days is to send a notification whenever an address is changed - to both the new and old address. It wouldn't stop them from making the transaction, but it would notify the cardholder that something is up and make it pretty easy to dispute charges.

I wasn't a fan of CC at all (selection, prices, and staff all seemed pretty bad there IMO), but I will say I don't like to see this because as Best Buy's competitors drop, they seem to be getting worse and worse. I remember when Best Buys first started popping up in my area they were actually pretty cheap, but I don't think anyone could claim that anymore.

I guess it just means we have to shop online if we want good prices...which really isn't that bad.