piggyback.me is valuable because the term "piggyback" refers to leveraging or riding on the back of an existing resource, widely recognizable and versatile across multiple industries. Combined with ".me", it suggests a personal or customized service, appealing for personal coaching, startup incubation, collaborative projects, or marketing strategies. Its playful connotation and strong branding potential make it attractive for both established entities and innovative, user-centric new ventures.