No. but mtgox sell for users with high price and buy from users with low price.  

I too looked into this and found a couple things.  There are fees you will have to pay each time you go from one site to the other.  And there is a lag time also which might play into the factor of loosing a little bit more $.  BUT it might be a good deal to make a little here and a little there.  It will add up  .  

It's a great question and this method could be of some benefit when there is a difference between btc-e,bitstamp and coinbase but please exclude mtgox as money in there can't be withdrawn in most of the world.
The reason why Btc-e is Lower in price is the difficulty to fund your account (and the associated high fees of bankwire,funding to perfectmoney etc...) .