You cannot compare the 10.00 gate fee to a high school fee or a minor league game. Both the high school and minor league game are subsidized by the school district and the parent club in many cases. PG I believe lets 12 and under in free. I doubt the minor league team lets 12 and under in free.
As far as the west coast east coast thing.... not a bad idea.... but maybe you should target your tourney and showcases to better suit your needs. In my opinion I like the Jupiter and World Series events better than WWBA.
Baseball is recruited regionally, stay in your region and talk to schools locally like I said about 5 posts ago. I took 2018 to Area Code games last year , flights, hotels, food, rental car for 3-4 innings. it happens, play the hand or fold.