A cheap incubator likely won't work that great and you won't be able to get very much money out of it if you do sell it again. I'm not sure why you would sell it if you don't have another. There's no harm in keeping it. Asking a friend to either hatch your eggs for you or let you borrow their incubator would be better.Why don't you buy a cheap incubator and a dozen eggs. It would be cheaper then a hundred eggs. And you can later sell the incubator