Hey guys I'm just wondering for those who have bought the new MacBook Pro, did you upgrade the Ram to 16GB? Since the Ram is on the motherboard, you CANNOT upgrade it later on. I'm thinking whether I should upgrade it or not. Do you guys think 8GB is enough for like 4 years? I'm not going to upgrade it for at least 3-4 years. Is it a good investment to upgrade it? Cheers guys!