What my daughter has learned and the experiences she has had from playing Travel Softball, i couldn't put a price tag on it.
But that is a perfectly valid response. I spend a lot of time and money on all of my kids activities (my 14 YO son plays the viola...you do not want to know how much a high quality viola costs). I don't do it because I think there will be some financial benefit in the end. If there is fine but it is about them pursuing something they enjoy to whatever level they want and taking me along for the ride.
This is a weird idea.
TB, by contrast, is 2-3 nights a week, with games about every other weekend. At younger ages, at least, travel is limited to about a 2 hour drives. TB is maybe $500 per season (again - younger ages).