sarahel22, I would also like to say "Welcome to flyertalk," but I suppose that once Randy's said it (Randy's the site's founder), it's been said.

I would caution you as you analyze the results of your survey to recognize that the responses you get from flyertalk members will not represent the general public. We are a self-selected group that will, I'd expect, report much more enthusiasm for frequent flyer programs and a higher response rate to their influence on our shopping behavior (and behavior in general) than is typical in the general population. It might be worthwhile to segregate the responses from this group and compare them with those you get from people recruited from other sources.