PayPal goods and services might be okay for some people, but if your buyer's trying to pay in BTC he's definitely going to ask for escrow. If you're legitimate, it completely makes sense to accept escrow as it reassures the buyer that he/she will get a good and working product, and you'll get more people willing to buy your iPhone or whatever product you may sell in the future- it costs you nothing if you ask the buyer to pay for the fees, and it hardly adds any time to a sale.

A list of escrowers can be found here.