I just read this amazing article about Stallion83, an Xbox Live gamer whose mission is to reach 1 million points!! He's currently got a Gamerscore of 500,000 and is recognized by Guinness World Records for having the highest Xbox Live Gamerscore IN THE WORLD!
How does he do it?! Well, according to Stallion83, he says that consistency is key. Some days he'll play 8 full hours, and other days he'll just play 10 minutes. In the end however, he admits he'll play any game to death.
I'll be rooting for this guy to make his goal and will be following him via his blog 1 Million Gamerscore.