I know folks talk about the direct costs of these ventures - fees, uniforms, travel, lessons, etc., etc. So I will throw hidden costs into the mix.
What about when you and your wife have been at work and then the ballpark all day and you come home for supper, but you're too tired to fix it? You go out to eat. A family of 4 will drop $40-$50 easy on supper. Then you have to get on your kid to do his homework at 9:30 every night. You are exhausted. He's exhausted. Everyone's temper flares. It's a mad house.
Take the situation through the whole week and by the time you get to Saturday and you look out and your yard needs to be mowed. That's another $30-$50 for someone to mow the yard.
Get 2 or 3 kids following this routine until they burnout or leave for college, and you've carted kids all over the state and nation playing ball for 12-15 years. At that point, you look across the dining room table at your wife and realize over the course of that time, you have become different people. She hates you. You hate her. (Now some jerk-wads on this site will relish that fact. I don't.) At this point, you now have to fork out attorney's fees and spousal support because you can't live under the same roof.
Yes, there are direct costs, but don't forget the hidden costs. Some people love that life. (And this scenario is worse-case, but it could happen.) My wife and I made the decision to not pursue it. All three of our kids had chances at competitive swim teams. We said, "No thanks."
If you want your kid to have fun in athletics, see if you can't live/work in a small town with a 3A/4A school. Let him play 3 sports and enjoy being a kid.
Just my two cents.