If your goal is exposure, WWBA and similar events are far better than any showcase PG puts on with the exception of the Jr National and National Showcase. I attended the PG All American Classic, and the game had a ton of little kids in attendance. Don’t get me wrong, there were college coaches and pro scouts there looking at “their guys” but PG pushed a lot of tickets out to local youth leagues to put butts in the seats to make it look well attended. There were maybe 2,000 people there, a vast majority under the age of 18.
Remember, if you include the guys ranked 1-500, then top 500, then top 1,000 your really looking at about 3,000 players. That’s a pretty big email list. If my player is on that list and is already committed, and realistically doesn’t have a shot at being drafted out of HS, why go?