Raiders isn't half bad for a summer. Its 1500, and they give you a LOT of fundraising opportunities. As for world class, most of them aren't too bad. Crown is the most expensive but they range from 2200-3500. I mean it is a lot of money, but for the amount of time you spent in the corps, its expected. They feed, house and transport you, and also teach you and provide typically brand new horns (most of them are brand-spanking new Xenos) every year, and you move in with the corps in May and don't come home until August. I don't know if I get into a world class corps after this summer, I know I am going to be doing a LOT of fundraising, and if you go to your town mayor or such, they will help sponsor you to march, same with most businesses.