A long time ago when I first got into egg hatching, I bought a Hovabator 1402, no turner, no fan, no nothing. Set it up, threw some of my own eggs in, everything I set hatched. That went on for 3 years. Then I got out of poultry for a time, sold everything, incubator included. Was surfing through
Ebay a couple years later, and saw hatching eggs. Hatching eggs for sale from all over the country! Cool! I bought 75 quail eggs and the same type of incubator I had before, full well expecting the same results I had from my own eggs. I got 60 of 75. Not bad! Then tried ducks, 5 of 11. I thought that was terrible. Fell out of the hobby again while my husband took us all over the planet for the Army. Started up again a year ago.
Most of my small flock now came from shipped eggs. I can't imagine the let down and frustration beginners have with it if they've never hatched their own eggs first. I came into shipped eggs with experience, a lot of hatches under my belt. A LOT... I don't think my incubator was ever turned off for a year and a half straight. 100% hatch rate was normal for me.
Now with my shipped egg experience, I expect 3 babies from every dozen set. I reserve it for only the breeds I just cannot find locally from a trusted seller. I have Serama eggs setting now, 6 of 10 are fertile and started. If all 6 hatch it will be my best shipped egg ratio ever. I will just be tickled!
If my first hatching experience had been with shipped eggs... I likely would have given it up. But since I can get eggs to hatch... and I know it isn't my fault every time a hatch fails... I keep at it. I KNOW I can do it, it's the shipping process that is so hard on them.
Once I had shipped eggs AND a faulty thermometer. They hatched on day
28! Day 23 we gave up. I decided to use the opportunity to teach husband how to gently open an egg. Good thing! That baby was alive! We put it back quickly and waited.... and waited.... and waited some more till I heard peeps at day 27 and had chicks day 28. Just 3, but still! The one we were going to break got shrink wrapped and I had to help it, but it survived to be my friendliest Splash Marans hen.