My parents NEVER buy me surprise games. In fact, when it comes to most of my gifts I am very specific, making lists of what it is, what it looks like, where to get it, and how much it costs because my parents have a bad habit of giving me something that's CLOSE to what I want...but not it and then wasting their money.
But one time my family had some extra cash so my mother let me buy a PS3 a little early for Christmas. Awhile later she recieved a package in the mail, a very heavy one, and said that it was my other Christmas present. I thought "cool" and impatiently waited for Christmas. Finally she let me open it and....brand new Xbox 360 that she bought off of ebay. I hadn't really thought I would want an Xbox, but it ended up being one of my most used consoles and I adore my Mass Effect and Dragon Age.
Two major consoles, one Christmas. I was so happy!