I have an exit survey on my Chrome extension, which loads automatically upon uninstall. People who hate the extension, or hate aspects about it, are more than happy to provide such feedback. Sometimes with obscenities.

One thing that people complained about was price, so I decided to ask people what price they thought was fair, from a list of three options (50% off, 75% off, and 99¢/yr). I then offered them a coupon code at whatever price they indicated was fair.

After offering this for years, and with over a thousand people going through this branch of the survey (which required saying that cost was the primary reason for uninstall), only a handful took me up on the discount. My takeaway from this is that lots of people will say that something should be X% cheaper, but nearly all of those people would not buy it even if it were that price.

Having learned this lesson, I no longer offer the uninstall discount, or many discounts at all.