Try typing "Sale Fly Line" or "Clearance Fly Line" in the google search box and check out the hits you get. Other search combos will get you more sites.
http://www.cabelas.com/cabelas/en/te...430&hasJS=true
As an example, the above site has Sharkskin @ $69.95. A couple of weeks ago they had it on sale with lighter weight lines.
Roy