This is an odd feeling. Finishing games is one thing, but to go back to them and complete it all over again on the hardest setting is something I would've never considered years ago. So why the change? Well, games that are actually fun more than once around the block. Such was the case with Batman: Arkham Asylum, and such is the case today with Uncharted 2: Among Thieves.
If this keeps up, I might have to make a new stamp just for completing games on the hardest difficulty.