View source for Linux vs Windows - A price guide

Prices of non-OpenSource equivalents of OpenSource programs are sometimes tricky to establish because many packages have student editions and pro-editions that are differently priced and precise feature alignment is tough to establish.  Street prices also frequently differ from "official" prices - and software is often a fraction of the price if it's bundled in with a substantial hardware purchase.  (eg The official price of Windows Vista is $220 - but when it's bundled with a new computer, the hardware manufacturer might pay $50 or less).  The methodology I used here was to pick the prices I get by typing "Buy &lt;productname&gt;" into Google and entering the lowest price I see in the adverts in the right-hand column.  I've also rounded to the nearest $10 because $199.99 doesn't look like $200.

{| border="1" cellspacing="0" cellpadding="5"
! Application<br>Area || Closed<br>Source !! Price !! Open Source<br>"equivalent"
|-
| Office Automation || MS Office || $600 ||Open Office
|-
| Operating System || Vista || $220 || Linux
|-
| Operating System || WinXP || $100 || Linux
|-
| Web Browser || Internet Explorer || $0 || Firefox
|-
| Image Processing || Photoshop || $650 || GIMP
|-
| 3D Modeling || 3D Studio || $390 || Blender
|-
| Audio Editing || WavePad || $39 || Audacity
|-
| Vector Graphics || Adobe Illustrator || $320 || InkScape
|-
| JAVA Development || JCreator || $80 per user || Eclipse
|-
| C++ Development || Visual Studio || $200 || KDevelop
|-
| Email Client || Outlook || $100 || Thunderbird
|-
| Presentation Manager || PowerPoint || $190 || Impress
|-
| Bug tracking & reporting || BugTrack || $190 || Bugzilla
|-
| Source control || Perforce || $900 per user || Subversion
|-
| CAD || AutoCAD || $150 || FreeCAD or QCAD "community" version.
|-
|}