I agree with everything, especially this. There's no one saying you have to hatch ALL the eggs you produce. If you only want to hatch 5 or 6, put the rest in the freezer. I agree that's it's more humane to kill them in the egg than out.
However, that said, I do think it's a great experience! Corn snakes are really cheap these days and I bet you sell them to a pet store on wholesale prices. I can't wait to breed my corn snakes next spring. I'll hopefully be putting my first breeding pair through brumation this winter (as in this upcoming December).
Good luck!