To be honest, Paypal tends to favor the buyer over the seller.  I've never done it, but I do know that scamming Paypal isn't that hard.  A buyer can pull a chargeback and get their money back even when the seller is honest.

On top of that, there are Paypal's account policies you have to abide by to use the service.  This is not entirely a bad thing by any means, but I did once have the funds in my account literally locked from me for several weeks.  Admittedly, with Bitcoin, so long as you are the only one with access to the private keys, the coins are yours.  No one can lock them from you. 

This all being said, if you find that you prefer Paypal as a payment method, there's nothing wrong with that.  There are markets for you to trade with Paypal for goods as well.  This particular market may be a bit more orientated towards Bitcoins, though...