The cost of a survey can be quite inexpensive, depending on your needs. Mainly how exact you want to direct the questions to a specific subset of people.

For the cheapest form of survey: Pay a local fotball club to have their members spend time outside supermarkets, asking people to answer a few questions.

In some situations, you can pay an Internet site to put up a form with questions. Selecting a good web site will control what type of people that will be exposed to your survey.

Surveys only gets expensive if you need to send out very, very large amounts of material, or if you need to pay for a filtered lest of people to send direct mails to, or to call.