yeah I noticed that :( I sent off a phone once. In it's box, perfect and the buyer claimed it didnt work and almost instantly won the money back which was immediately removed from my account with no say on the matter. The phone never was returned, not that ebay cared, so the buyer got their money AND the product.
Add to that paypal fees and the increased cost of postage it's only worth doing for more expensive things. I do use hermes for postage as it's cheaper for parcels and they pick up from you. The other thing with ebay is people can be very unreasonable and downright rude, ebay always sides with the buyer so you could lose out big time.