impacts wreck. Local high school coaches rely on clubs to train their kids and then all they really do is hold batting and infield practice. Not really much coach, at least by the coach my son had. If you didn't play club he didn't pick you to be on his team.
Basketball, its kind of the same way. The really athletic or wealth families stick their kids on the club teams. 15 years ago, we were challenging for state titles, now they are getting thrashed handily. club only isn't working. To many sub par kids whose parents have the wealth to push their kids into travel.
Girls volleyball is thriving with the clubs, partially because there is no non club leagues.