Late to the conversation, but there are a lot of positives for the Ebay Standard Trading Card shipping option. They max out the value of the sale at $20. A lot of people might think a $20 is pricy, while the reality is, at least for ebay, $20 is a drop in the bucket. The earlier post describing the service was outstanding. I find that I see cards I bought showing delivered sometimes several days before they actually show up. I am still sitting with only 1 item that failed to arrive since they started doing this service. The item turned out to be an ACEO print card, so the seller just made another and replaced my lost one, so I am essentially at 100%.
It's frustrating as a buyer to know this option is available and the cost is .71 for the first ounce if I recall and around .93 for the 2nd (I have the message ebay sent with the price increase saved), yet so many are unaware or won't even consider using it. At over $4 to ship a 1st class mailer, it makes no sense NOT to use this service for cheap card. Even if a few do end up lost, the amount of sales on cheaper cards has to balance that out.
I am nearly ready to pull off ebay because of the ridiculous cost of paying individual sellers $4-5 to ship each card I buy. Then I also have to pay my State sales tax and I am adding another 10% to my purchase price. It's become cost prohibitive to shop singles on ebay and this new method opens a door to go back to buying cheap singles (under $20) if people would just get on board with it.