Sorry to disagree with highlighted parts of your post.
First, why, "Maybe Bio Tech."? Do you realize it is the only IB school of the Vo Techs in Monmouth County? And for whatever it is worth, US News and World Report ranked Biotech the best high school in NJ ahead of High Tech.
Do you realize Communications is a much different focus than High Tech, Biotech, MAST and Allied Health (premed)? It is focussed on Communications, not sciences.
And MAST does a nice job of developing leadership skills because of the ROTC component. Very unique. And chemistry, biology and physics classes are sometimes conducted on a boat. Where else is there such an opportunity? And maybe the kids going to Communications and MAST are not interested in running (or ruining) the world.
There are many reasons for kids living in Rumson, Holmdel and other towns to send their kids to private schools. Some do it because theour kid to Philips Exeter, Lawrenceville or Peddie is some type of terrible mistake? I strongly disagree.