PC Pitstop included a clause in one of its own EULAs that promised anyone who read it, a "consideration" including money if they sent a note to an email address listed in the EULA. After four months and more than 3,000 downloads, one person finally wrote in. That person, by the way, got a check for $1,000 proving, at least for one person, that it really does pay to read EULAs.
http://www.pcpitstop.com/spycheck/eula.asp