Why should you go with i? Here are some papers you may be interested in.
1. Summary of IBM i Capabilities, presented by IBM's Guy Paradise. Go to ngsi.com, input your email address, click submit, and the video will begin immediately.
2. IBM i overview, presented by IBM's Steve Will, originally developed for the IBM i Large User Group (LUG)
3. IBM i Strategy and Roadmap - 2010. Two versions available:
4. Two page summary from 2009 of IBM i Benefits(PDF) - the points made here are still valid today
5. International Technology Group White Paper on Total Cost of Ownership(PDF) - January 2010 Executive Summary - Complete Report(PDF)