[development] Upgrading Drupal

[nan wich]

I suspect I know the answer but am looking for reasons to convince a potential 
customer. The question is: Can you jump from Drupal 5 to Drupal 7 in one fell 
swoop? I see upgrading contribs as one of the biggest obstacles with API 
changes 
being the next one in line (assuming there is site-specific custom code).
 
Nancy
Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.