Arizona Technology Expo -why use open source

Regardless of if the gentleman can do the large printout for us we need our
list of what will be printed on the sign.
Here is the start of the list:
<Please add to it and we will discuss it as a group>
Ok guys and gals, let us start a list of the poitivepoints of using open
source.
1. Vulnerabilities are fixed relatively quickly.
2.?