I've wondered about this myself. Anybody got any experience? I feel like the 100$ leagues are likely to be filled with cocky MLB fanboys with little to no real idea what goes into winning fantasy baseball.
another good site I use is rtsports pro leagues haven't been running from what I saw and that site has like price rangers from 19.99 - 999.99. I'm in 4 right now. It is weekly lineup changes. Anyone interested I could start a league... Just be sure to read the rules I joined one called draft masters and that's what it is you just draft and let it ride no changes that was only down fall for that one I joined but I didn't read rules.