Segmenting Customers with One-Click Surveys
canopylabs.com
canopylabs.com
That is lower than I would expect for a campaign giving away $5 with a click.
We basically deal with this objection/request in two ways: (1) use the one-click survey as an entry-point into a bigger survey so you get at least SOME feedback, or (2) simply ask people if they'd prefer lots of info on a few people, or lots of people giving a bit of info. A lot of companies will choose the latter in this case.