Great titles that for one reason or another (very poor condition, didn't sell at higher price etc...) I need to "clear out". Buy a bunch at a great price or add 1 to your order - maybe it won't affect the shipping cost? Either way they won't set you back much and there are some great titles with more being added regularly.
Generally speaking - $1 books are readable but have MAJOR wear issues, $2 books are readable but simply have a lot of wear or have been marked down.
