That way, there's no organising, no mess, no fuss. It costs a bit more, but when all your volunteers are elsewhere it's a blessing. Drink Buy drinks early in the week and ice on the way to the tourney. If you look around, you can usually get cans for under 60c. Lemon drinks are generally more popular than the others.
Sports drinks are now also very popular.
We never really had enough of them. Get the cheapest ones - they all sell equally well. We could have sold 150 to 200 of them, I think. For big tournaments, talk to the local distributor of your favourite soft drink. And it's much easier to buy by the case than at the supermarket.