I have a product that I would like to sell, so I want to see if anyone else is interested in it, in order to confirm or deny that I should market it. So, I want to conduct a survey online to ask users if they prefer my product more so than the competitors, and some other questions. I see from looking at the prices and products for this that I could get a free survey of 100 respondents, but to get it directed at specific respondents costs as much as a dollar per respondent. Is there any way that I can get around this in my statistical analysis so that I can find out the answers to my marketing questions at a lower cost? (I also saw one company that had respondents for 50 cents each).