Prices for high end games have gotten unbelievable. Seeing MMs go for $12-$15K+ and CCs about the same is something I never thought I'd see. As stated many times above, I have my collection to play and enjoy. I bought all off the games at the right price and they have all appreciated. Even if they hadn't I would still love and own them. I sold my MM 5 or 6 months ago to a fellow collector for $7900. I know some will think I was an idiot to do it at that price, but I was trying to allow a fellow pinhead the opportunity to own this great game at a reasonable price. I know my gesture won't affect the overall crazy prices going on right now, but I tried to do my part. I still sold it for my than I bought it for and I enjoyed playing a lot of games on it.
Also as stated before, if you're in the hobby to make money, good luck. If you're in it to enjoy playing the games, welcome the new pins coming out...