  With the rise of the library ecosystem (such as NPM for JavaScript and PyPI
for Python), a developer has access to a multitude of library packages that
they can adopt as dependencies into their application.Prior work has found that
these ecosystems form a complex web of dependencies, where sustainability
issues of a single library can have widespread network effects. Due to the Open
Source Software (OSS) nature of third party libraries, there are rising
concerns with the sustainability of these libraries. In a survey of 49
developers from the NPM ecosystem, we find that developers are more likely to
maintain their own packages rather than contribute to the ecosystem. Our
results opens up new avenues into tool support and research into how to sustain
these ecosystems, especially for developers that depend on these libraries. We
have made available the raw results of the survey at
\url{https://tinyurl.com/2p8sdmr3}.
