I'm still mystified...

That is the point Uber. Perhaps to get some to think about it as a positive as folks are missing out if they stick to a “negative” mind set on something that can actually be good. Just food for thought on this thread. 

I have NEVER seen this kind of "hidden fee" or "extra fee" behavior in the industry with audio electronic equipment.

Saying "sales tax" is part of this thing is not a good example because you have sales tax with any item purchase you make locally in your own state.

I can only think that you guys are not paying attention to the receipts you are receiving every day. Yes sales tax is charged on every purchase you make and it is almost never included in the price the seller quotes to you before the purchase. Why doesn’t that upset you?

When you go to a restaurant the menu gives you a price for your meal and then the owner adds sales tax when you pay for it and you are also expected to pay 15% or more to cover the cost of having someone serve you your meal. Shouldn’t the restaurant owner include that in the price on the menu? Shouldn’t paying his/her employees be his/her responsibility?

Have you ever looked at your utility bills? There is a list of taxes and fees you are required to pay in addition to the charge for water or phone service or electricity that you use.

Get the oil changed in your car and your bill will include various environmental and disposal fees.

I could go on, but you get the idea. Don’t deal with people who add Paypal fees if it upsets you, but understand that Paypal offers much greater protection and benefit to the buyer than the seller. Just look up some of the Paypal threads on this forum.

Don’t just meekly accept all the taxes and fees added to purchases you make every day, refuse to do business with these ripoff artists! If you don’t, eventually the fees and taxes will exceed the cost of the item or service you purchase.

"...refuse to do business with these ripoff artists! If you don’t, eventually the fees and taxes will exceed the cost of the item or service you purchase."

That is exactly what many of those who do avoid sellers with PayPal fee clause are doing. Maybe skipping the seller with PayPal fees is the first step towards avoding this anticipated problem.

No that’s not what they are doing. The people upset with sellers who add Paypal fees in their Audiogon ads but do not apply this reasoning to other products and services they purchase are using poor judgement about what is important and what is not and are unlikely to confront business owners or utilities or government agencies about excessive or undisclosed charges, IMHO. That is their right, but they may miss out on some really good audio deals over nothing, IMHO.

It works both ways. If somebody wants to come by and pay cash, should they have to pay the full price with PayPal fees included in the price? If somebody sees a paypal surcharge, then pay by check and don’t pay the fee. It’s the buyers choice.
Also, when you go buy a car, you don’t know what the out the door price is until you know what taxes you will be paying, registration fees, etc.. all you know is the cost before all the fees/taxes attached.
Have you ever tried to buy an expensive item with a credit card? Some dealers will want to try and charge you for the credit card cost. It all depends on the markup and what they make on the transaction if they can pay the fee or not.