I have six, My first was a Garrett A3B United States Gold Hunter, I bought used I think around 1990. Did not have a clue as to what I was doing, but was hooked. Next came a Garrett GTA 1000, of which I used to death for many years, after which came the Discovery Treasure Baron Gold Trax, never really could figure that one out, (Different levels of "SLEW"?), Then the Minelab X-Terra 70, Then the Minelab Safari, Then the Garrett AT Pro, all of which hang on the wall in my "Fort". (I really dislike the term "Man Cave") It's my "FORT". I had thought of buying another, I currently most often use two, but the thought, I knew enough about all of them, but am I a master of none? So, I'll stick with what I have. I will point out though, different detectors for different jobs, depending on what and where you're hunting. Much like a hammer, screwdriver and saw. OR, is that a reason we use to buy more than one? Because we just LIKE EM'!, Works for me. P.S., A couple of times my wife had said that I needed to Grow Up, what are you, like 12?. I think she's just "Jealous" of my Fort.