Very small market currently as many are put off from purchasing due to the fact there was no US dealer, no US warranty repair station. This is true for most detector brands not supported by a US dealer repair network.
Your it, you'll have to do all the promotional work and establish the ground work to get the interest up. Gary and Ziggy did a good job in the UK.
All you need to get going is convert the loyal Tesoro owners to try a DeepTech. Then you'll start to capture the beep and dig crowd. Bet you would capture a ton of them if DeepTech detectors were housed in a smaller box.
That's one draw point for Tesoro users.
The DeepTech are mostly known as a relic machine in the US due to the limitation of the disc control not going higher than foil. You need to convince the disco crowd foil disc is good enough. With the Vista Gold and the Super 6 coil is really nice even set below full disc setting. You can tell trash, foil and canslaw in disc mode easily by pinpointing, pulling back on the coil and just before the target audio drops off, if its a rough drop off its trash, clean drop off, dig it. Found it works about the same in two tone when the tone break is left at the same high disc setting, switching from disc to two tone the target audio drops off from being a high tone with a quick low tone, its trash. Again breaks off as a high tone dig it. Guaranteed to dig a lot less canslaw, foil, junk than a Tesoro at the same foil setting. Knowing this makes the Vista a good coinshooter, jewelry machine vs.only being considered a relic machine. The Vista has some nice audio variances to alert to targets being of different composition, even in disc mode. I sometimes use single tone all metal to aid in pinpointing, helps identify some deeper targets.
The beep and dig guys will easily like the DeepTechs, its the guys who are dedicated to fancy pants target ID LCD screen machines with all the bells and whistles are going to be the tough ones to convince to try.
Many are lost without all the info. Met a guy while hunting the other day with a Minelab 3030 who couldn't grasp the idea of a beep and dig, he thought my Vista Gold was some old machine...just let him go on thinking that as I more or less heard him say..."good luck" with whatever you are using.
Keith Southern set up some good ground work with his videos and postings on NASA TOM's forum.
Enjoy your venture,