no need to throw away anything - static and shared versions can coexist in parallel on your harddisk,
then you've the freedom of selecting, which version you want to use for your project.
please keep in mind,
that building (especially linking) is much faster using the shared wxwidgets library than using the static libs.
so it's often appreciated, that you do your development with the shared wx-libs, and when you're finished
and want to deploy your application, build it using the static wx-libs in order to get an independent executable.
read your <wx-widgets-path>\install-msw.txt, there you can find any necessary information.