I'd think long & hard about getting a newer detector.? When it comes to depth it really depends on where you are and the mineralization. I've had so many detectors through the years that people claimed were depth demons which were a disappointment. For example, a buddy & I were hunting on the New Mex./Az border & had along an (old) Whites 4900, Sov., Gold Bug, Garrett Scorpion, Fisher Goldstrike. Guess which detector was the deepest. If you said Whites 4900 you'd be right on the money. These were inground tests using a 1/4 ounce nugget & various other targets. I've been gold/relic/coin hunting for about 20 yrs now and know what I'm about when using a detector & my friend has been doing so for about 30 yrs. There's been a lot of debate regarding the new units & depth & for evey person that claims a depth increase there's one that claims otherwise. Personally I'd say that, if you're comfortable with your detector, save your money & swing it. I'm somewhat of a detector slut & have tried a whole number of units (old & new) on my favorite heavily hunted trash pile beach. With EVERY detector I've pulled out deep silver. This site sees at least 5 detectorists a day during the summer.. probably more. What I've seen is that a lot of the newer machines are just more bells & whistles. They might excel in certain types of ground, but the same can be said about the older ones. Mostly, it is basically convenience your paying for & slight changes or tweaks ("Treasure Talk" anyone?). Right now I'm swinging a modded Cobra II that, with the 8" coil, is putting both my Sov. & GTI 1500 to shame. Don't get me wrong, they're fine detectors, but not the "best", nor is the Cobra II or, as far as I know, any detector being sold. I applaud the salesman you were talking to.. it seems like he's not "just trying to make a sale". As an aside, there are a few forums where there are pretty active discussions regarding the relative merits of old & new detectors of different brands. what it comes down to is that it's not so clear cut as some would have you believe. ..Willy.? ? ? ? ?