I have to agree with you ARSIE. If I see something I want I am willing to pay the asking price. Heck I've even been known to pay more if the seller has lowered his price to entice more offers. In my opinion I want a happy seller selling me an airgun. An unhappy seller may affect future sales or at worst a poorly packaged airgun shipment to me.
To get back to the original topic, I agree that it's not sales ethics but sales courtesy. And once again if you wish to make more sales/buys you should treat everybody with respect no matter how much you may feel your airgun is worth.
Occasionally I see airguns for sale on the forums for maybe $20 less than a guy paid for it at Cdn Tire. Those guns don't sell. But that's not ethics just sales inexperience.
I recomend that if you have a bad sales experience with somebody on the forums simply place a negative feedback within the Buyer/Seller Feedback Center and don't make it personal, don't let it spill out onto other subforums. Lately I've witnessed a lot of bickering and name calling. This is just a hobby guys and we are all adults here.