3 for me.
The first was back when I as 12, I'm 17 now, and my friend sold it to me for £10, but after installing it and it didn't work, I sold it to another friend for £15.
Then when I got my Xbox, one of the first games I bought was an original Oblivion, map, guide and everything, and this Christmas I got a voucher for GAME, and bought Black and White 2 Collectors edition and the 5th anniversary addition of Oblivion, which was only about £12, I thought it would be more.
I'm buying a good laptop / or desktop next year for College, and can't wait to play this game again. As for Skyrim, if my computer's good enough, I'll get that too, but if not, I'll just wait 'til I get another xbox.