Oh ok, just trying to help..
I think the difference is with escrow, he will never see the money. The seller will have to turn over the site to you before escrow releases any money to him, where as I can make a brand new paypal account, pretend to sell you a website, stall with you for 5 days until my money is out of paypal, then vanish… pp buyer protection only protects you if paypal is able to recover funds from the account you sent to.