Here's another idea for you. I have had several other brands of detectors including White's DFX, Garrett GTI 2500, White's TDI, and now an Etrac. I recently sold everything except the Etrac. Never owned a Fisher, but the reason for selling all would apply to it as well. I decided to buy another Etrac. Now I have two. I have four coils all of which are interchangeable. Previously, I had a couple of coils for each brand of detector, none of which were interchangeable between machines. Now I have two sets of batteries I can charge up and use in either machine. When a family member or friend wants to join me on a detecting outing, I just give them the other Etrac to use. It is far easier to instruct them on its use when I have an identical unit in my hands, rather than trying to instruct them on a unit of differing brand. Also, if one unit were to go down, I have an identical unit to fall back on. At first thought you might think it is an excessively expensive option, however, the other brand top of the line detectors aren't much less expensive. Furthermore, the ability to use interchangeable accessories such as coils and battery packs offsets some of the cost. This is what I've been telling myself anyway.