Yes, we like them a lot, when they are managed properly. If a CO is no longer going to be active, the Virtuall cache should be archived or adopted. As others have said, they are a different twist on the basic game. So are earthcaches, or letterboxes, or mystery(puzzle) caches. But that is what makes it fun. We love this activity for what it brings to our lives. Getting outdoors for some exercise, meeting new frinds, taking us to places that we would never of thought of going to. A well done virtual will take you to places where a traditional is not acceptable. They can teach us some history, or show us interesting tourist locations.