Not sure if DS4 was there or not as he was only 7 - 8 years old, but his uncles team played in the 1995 Usssa C regionals in Reno/Sparks/Carson City. There was 123 teams there Labor Day Weeks.
The C Division within 10 years dropped to less than 20 active C teams in the whole state of Cali.
My opinion we are 25 years away from when the problem started. We will never see tournaments like that again.