Promos are freebies in the US.

Troy Agusto goes to second-hand shops, buys rare promos and sells them on eBay. Universal decided this was a copyright violation. Judge says: Wrong! The “promotional use only, not for sale” label is at best an internal record company directive — if they give you a promo absent a contract to return it, it’s yours. “Copyright holders can’t strip consumers of their first sale rights just by sticking a ‘Not for Sale’ label on a CD.”