A challenge is a challenge, whether it starts on something real, like a mountain, or somewhere fake, like a video game. The challenge is still real. I get obsessed when a challenge is presented to me.
Now I am obsessed with the challenge of losing 20 pounds.
But why didn't you pick a challenge that offers some valuable result? Losing weight does, but does saving the Princess Queen from Zorlog the evil Toad really offer any real satisfaction?
But then again, spraying on cc.com is pretty worthless, yet I waste too much time doing that, so I'll just shut the fuck up now.