I understand you.
My previous metal detector, it was a digital home-made detector, which is popular in our country due to the cost, many home craftsmen make it. Some have better and more stable results, some have the opposite. I had a good one, and it yielded quite a few good finds. But most importantly, thanks to its menu, which allowed the user to adjust a lot of everything, starting from the brightness of the screen, and ending with the selection of the filter speed, he taught me to understand the processes that take place in the detector. And it was after him that I switched to an analog device, as I understood that an analog device differs from a digital one in the same way that the live communication of people differs from correspondence on the Internet.
Yes, internet speed and digital technologies are progressing every day. You can put emojis to better reflect your mood, and everything else. But a person who is well versed in the psychology of communication, looking the interlocutor in the eyes, will always choose this particular method of communication.
The world of metal detectors is driven by marketing, and most buyers simply won't understand why they would pay for a new development of an analog device when there are so many digital ones. There are expensive ones, there are moderately priced ones.
Therefore, I understand that technically it is still possible to move forward there, but I do not see great chances from an economic point of view.
Therefore, unfortunately, this will probably only be the path of single amateurs. Who knows.

I use Deep Tech VISTA X
My dig channel [www.youtube.com]