Stickied. I've seen enough scams happening without the use of escrow. Also, escrows increase the amount of trust a seller/buyer conveys, and thus increase the possibility of sales for newer members.
I think there is a simple way around this with the market maturing. A couple of financial service providers now issue a Visa or Mastercard directly linked to your Bitcoin holding. I have one from ClariumCard.com which I use everywhere, and any pruchases I make reduce my bitcoin balance in real time. Eliminates falling prey to scammers who steal your coins.