Here's another: Stunning Sterling Silver Antique Pocket Watch Chain w/ Coin Fob Scrap/Use 12.9g

POSTAGE $45.00 AUST

What's with the postage cost when this would fit in an envelope?

This is why ebay decided to include postage in their charges - because sellers were scamming the system.

Unfortunately, as usual, because others were doing the wrong thing, people who were doing the right thing will also be hit by this.