Many say that its design was to ahead of its time.
Another reason was it started out as an old Fisher company project and it got caught up in the change over to First Texas. First Texas wasn't real interested in taking on the Coinstrike. So it may have lost some marketing in the transition. Rumors from some company employees claim that units like the C$ were very expensive to manufacture.
Another thing that hurt the C$ in the public eye was customer reviews, very few stated it as just a pretty good detector! it was either they hated it, or they loved it. Seemed the people that hated it were the more likely to post their complaints. kind of like an old song,
Good News Travels Slow, Bad News Travels Like Wild Fire.
It the only detector that I know of that didn't get much middle of the road reports.
First Texas claims they could not move the C$ in any numbers??
I'm sure there is way more to why it didn't take off very well, but we the people will probably never know.
Mark