Many open libraries = capitalism
Since capitalism elucidates turrets in some people, I'll add that what I'm driving at is competition breeds innovation and quality. If one library adds functionality another doesn't have, then it will add it, and in the process, improve on it. Awesome!
1. Allow established entrants to focus on more beneficial areas.
2. Lower the barrier to entry for new offerings.
3. Reduce the number of defects by shifting resources away from maintenance of incidental functionality.
I personally consider it actually funny how the notions of socialism and capitalism are used by some posters on this website as if we still had 1970 or something. How old are you?