I'm not talking about screwing people over here... Several of you are getting the point. I didn't specify in the original post, but i'm not referring to Ebay transactions.
Ebay policies agree with me, but here I'm referring to casual forum interactions. I see people posting a price, then saying "add 3% paypal fee". It just kinda burns me, like the ol' $19.95 thing... it's $20.
The other problem is when it isn't mentioned till AFTER a price has been agreed upon. If the seller was worried about the 3% they should have asked for it in the original price, not sneak it in after.
I'm frequently a buyer and a seller, so I do have a fairly unbiased perspective. I consider the 3% fee a cost of business, and well worth the quick payment and security. Paypal is SO widely used now, that people are trying to take advantage it IMO. As a seller, you're an odd man out if you DON'T take paypal.
I usually don't argue over it, but it hurts when buying something VERY expensive. If nothing else, why not split the fee? Like I said though, I think it's the seller's responsibility to pick it up.