Yup, even i have not raised dispute for non-trackable items as they are generally single digit dollar items, the sellers ship them and it would be unfair to get back money from them. They already operate on very thin margins.
I think it is better not to order using non-trackable post, most of the times either the seller or we the buyer end up losing money in the transaction. Even the local post office guys have told me not to order anything using non-trackable post.
