Hi, I have a full retail version of Reason 2.5 I have owned and used this software for some time now. I really enjoyed it, but don't use it at all anymore. Reason 4 costs $400, an upgrade from any previous version is $130. Buy mine, comes with Box, receipt, Licence Card, All CD's, Manual, and a kazhawanna Drum Refill (kazhawanna.com) A great addition if you want lots of great kits to make beats ...