I've actually had great hatch rates from shipped ebay eggs -- except once. When I cracked open a couple of the non-developing eggs at day 5, the blasodisc was degraded and the yolk flat. They were not fresh eggs and I was lucky to get 2 out of the 24 to hatch. The 22 others never developed at all and I kept most until day 18. This was a seller that was in-state so I thought travel time wouldn't be so harsh on them. Oh well.