I am so angry that I didn't mine it more when I first heard about it in like 2011. I heard about it early enough that I could have probably found a block on my own at some point. I had decent hardware even though I was young.
I mined it for like a week and ended up getting what would now be some really good money. Maybe a few hundred dollars? I lost the wallet (probably deleted/forgot about it because at the time it was worth squat) and only picked it up in April of this year. I didn't get serious until about a month ago.
Then again, I think still have the hard drive that the wallet was on. If I could find the file, I could have some good money. Hmm....