I had not been out in 20 years with a detector, since my White's 6000 Di series 3. I had the same problem, which detector, this is what I learned.... m6 is a stripped down mxt, the mxt is more for relic hunting, the xlt is old technology, you should get the dfx, without a doubt if you are able to handle the learning curve. I took it out of the box watched the video and have been out four times, I have found over 120 coins already, people told me the dfx would be to hard to learn! The pre set programs are not hard to learn though!! Why the dfx and not the xlt, you ask? The dfx is a duel frequency machine, you can use both at once and the detector will pick out the best signal. What has this done for me>I find a very good balance of all coins. Don't settle for a hot dog if you can afford a steak! Unless money is the issue, then I would go with the xlt Gregg.