I think the percentages of detectorist a using metal detecting forums overall has grown vs in the past,,but I certainly don't know the actual percentages,,,and I don't think anyone else does either.
Trends can be seen though I feel with certain brands/models detectors. But a person does need to try and keep what they read in perspective.
The CTX certainly isn't a popular detector,,,,I would venture a guess At Pro sales dwarf it many times over.
And the Ace series detectors,,, many, many more of them sold vs any of the FBS/fbs2 minelabs.
And bounty hunters,,,a whole bunch of them sold too.
Now if we want to talk specifically high dollar or flagship detectors,,,then the etrac and CTX I' m sure would at least get worthy mention when it comes to units sold.
Personally a better title for a thread such as this,,,would be,,, what can detector A do for me that detector B won't,,, based on your experiences.
Then each detector would be layed out here,,their strengths and weaknesses, as well as similarities.
The X vs Y kind a thread-- folks get lost in the weeds,, the folks who are reading these threads,,, need to be able to make heads or tails out of what is being said.
Everything we put here on the forum,,, just remember you are just not talking to who you are responding too,,, actually many, many more folks,,,do read what you post.