Backing up your virtual environment does not have to be as challenging as it seems. Actually if you do it right it should be rewarding when compared with physical servers backup. You can restore VM from images backup much easier than you ever did with physical servers. Yes, you were able to restore physical servers from images backup as well but that had never been fun or easy to do. Restoring a physical machine from image backup had always meant fuzzing with drivers issues specially when using different hardware from the source. As virtual machines run independently from the physical hardware, they can be restored from images quickly to any host without caring about the hardware difference. This is alone is a huge advantage.