I assume you are talking about off-season teams? If so, they can be a good way to spend time with like-minded parents as a means to enjoy some hockey comraderie but are not generally focused on development.
these teams are generally not going to be focused on player development, unless they are getting explicitly focused individual skill development during practice.
if there is no way to practice and if there is no skill development and only games, save your money unless you are doing the team for comraderie amongst friends.
for development you would be better off playing another competitive sport during the spring.