Since I don't really feel like spending the money on a backup for every piece of equipment right now, I thought I should get a backup for the most important pieces of equipment first, that being my mower and trimmer. That's why I have 2 of each of those. Since I only have one blower and one edger, my viewpoint is if my blower breaks down, I could use my mower to get the grass off the driveway if I needed to. And if my edger breaks down I could use my trimmer to edge if I really needed to.