Yes, there's a market for losing scratchoff tickets because they have very broad dates during which they were sold while draw tickets are for specific dates. However it's not really practical to offset really big multi-million dollar wins with losing scratchoff tickets. If it's a few thousand then yes, rummage through the trash bins at your local store for losing tickets. Thanks Regards, http://www.eurochance100.co.uk/cgi-bin/user.pl
"In 2005, Dr. Zhang was having an ongoing discussion with friends about the Lottery, with Dr. Zhang taking the view that it offered poor odds and was a tax mainly on poor people. To bolster his argument, he began analyzing the Massachusetts Lottery’s various games. But when he got to Cash WinFall, he was shocked to find that during roll-down drawings the odds were in the bettor’s favor."
Full story here - it's rather engrossing.
http://www.mass.gov/ig/publications/reports-and-recommendations/2012/lottery-cash-winfall-letter-july-2012.pdf