My boys 7 and 9 both play spring and fall little league baseball (that I usually coach or assist) and both do summer all Stars (3 or 4 weekends in July plus practice). League are 80 to 100 bucks. All Stars is $20 each. This is PLENTY of baseball.
They also mix and match soccer and basketball... again around 80 bucks.
My older boy was asked to be on the league's travel team, but we declined.
Btw, we've scrimmaged the 8u and 10u travel teams, and they're not all that much better. If you have the cash and desire for travel teams, pick one that exists to teach and have fun, and go for it.