A player has to determine his talent level and target schools before looking at PG v. PBR. Plenty of kids have wasted a lot of money attending PG events. I can’t comment on PBR. It’s become bigger since my son played.
Unless you’re the “I’m a high in the draft prospect stud, come get me” player don’t thrown spaghetti off the wall to see what sticks. Figure out what schools you want to target. Find out where they go to look at talent. Build communication with the school and let them know when you will be where they are. Get your travel coach to presell you to the coach before the event.
The best events are the ones where you are seen by the schools you target.