Newegg offers the OEM Parallels Desktop 10 for Mac for $79.99. Coupon code "EMCAPNA25" cuts it to $32. With $2.99 for shipping, that's the lowest total price we could find by $35 and the best price we've seen for this version of Parallels. It allows you to run Windows 8.1, Windows 8, Windows 7, Windows XP, Google Chrome, or Linux on your Mac, drag and drop files between OS X and Windows, and turn Boot Camp partitions into a Parallels virtual machine. Deal ends March 23.

Note that this OEM version doesn't include the retail box.