I am a real bargain hunter and enjoy a good yard sale more than I should. I find it difficult to go to sleep each night before I scan Craigslist and make a few offers. All of my igloo goat shelters have been purchased second hand and used. I have never paid more than $30 for an igloo shelter. At that price, I could not make a goat house from wood.
The best thing about the igloos; goats are unable to climb and deposit their little droppings on top. They won't eat these heavy plastic domes and generally don't have fun vandalizing them. The perfect goat house.