I think what that 2700 sold for was a joke and was Way Undervalued. You will never see one go for that low again. It is a true piece of history and not all people buy for bragging rights. Some buy it because they truely love the history and admire the incredible technology that went into something like a 2700! These will be viewed as the Honus Wagner of Video games in the future.
If a coin or a baseball card was one of 10 or 12 it would be worth $1,000,000+! Even Pokémon cards and magic cards are going for $25,000+! And those are cardboard!
In ten years Atari 2700's will trade hands in the $20,000+ range!