Open Source vs. Closed Source Support

“The main factors for commercial support per my experience
were:

• “Installation – Probably the number one factor in any support
  organization I worked in whether it was consumer Internet, web
  hosting, or enterprise application servers. In the case of the app
  server for Linux the biggest problem was dependency resolution
  since keeping software up-to-date for the fast changing Linux
  distributions was tough. Often users customized their install often
  failing to install software needed to compile or install software
  on their particular brand of Linux…:

Complete Story