This can go for anything, sport teams, schools, even just a regular person. For sports, you get a lot of discounts when you have a company sponsor you. It's always nice to have a sponsor, but not all teams can get one. Even if you don't have a sponsor, they still can give you discounts so don't worry.
However, there are teams who don't get discounts at places, so they will have to spend more money to get what they need. But, if they need to buy a big quantity of something, they can order wholesale volleyball equipment online because when you buy stuff by the bulk it's cheaper than buying it individually. When I say equipment, that means a lot more than people think, it contains everything needed to play volleyball. I would personally buy at least volleyballs from them since you will need many, at least most teams do.
Not only does wholesale volleyball equipment stores carry volleyballs, but it also usually carries Nike volleyball uniforms or some brand of uniform incase you're buying for all the teams in the association. Another thing that will save you money is used volleyball training equipment. Spending money wisely for the league is the best thing you can do for it!
For more information on volleyball magazines go here!