The first printing of it is a bit difficult to find unless you're an avid EBay fanatic, but it's been reprinted several times since then as it's a pretty solid seller for Marvel. (4thletter.net)
Dick Francis» long string of mysteries set in the world of horse - racing have been solid sellers since the 1960s. (bookpage.com)
Although some analysts proclaimed e-readers a niche item, both the Kindle and Nook proved to be solid sellers during the holiday 2009 shopping season, and their respective companies have struck deals with major retailers such as Best Buy and Target to provide an additional sales channel. (eweek.com)