But according to Givewell (http://www.givewell.org/) who do research into cost effective use of charity money, mosquito nets are very effective. Their #1 recommendation is the Against Malaria Foundation who "provides long-lasting insecticide-treated nets (for protection against malaria) in bulk to other organizations, which then distribute them in developing countries."

"AMF is a recommended organization because of its:

- focus on a program with a strong track record and excellent cost-effectiveness (more). - standout transparency and accountability - it publishes photographs and reports from each of its distributions and requires that organizations that distribute its nets monitor the usage and condition of nets in the years following the distribution and track and provide monthly malaria case rate data (more). - room for more funding - AMF has told us that it can use additional funding to expand its core program and has committed to reporting on how additional funds are used and what results are achieved."

Even if you don't accept Givewell's research, I think there is enough evidence here to doubt the statement that you wouldn't be "crazy" to think their were more effective use of money than mosquito nets.