Yes, so it pays if you are selling something expensive, with a higher shipping cost,but if you add $5.00 to a $10 item and list it for $15, then what happens is you come up in a lower place in many searches.
The other problem is, IF you offer returns and state that the buyer pays shipping (unless there was an error) you wind up paying the original postage you paid out, when you do a return.
I'm very lucky, I don't get a ton of complaints and I can't remember the last time I had a return, it was years ago, but I do remember doing 1 and refunding and having it cost me the shipping.
It kind of stuck with me;)
I do free shipping on anything I list at over $50 or something like that...depending on my mood;)
Sha, are you referring to best match or searches according to highest and lowest price? I'm pretty sure these searches sort according to"total" price (item cost + shipping).