This question already has an answer here:
I think I would like to install Mavericks over Snow Leopard on my Intel Core 2 Duo MacBook Pro because I imagine it is more stable than Yosimite and I'm doing a lot of development on it, for which I want Port Tree (Fink in my case) packages to be available for items like Python, PostgreSQL, etc.
But Mavericks doesn't seem to be available on the App store anymore. Tried downloading from CNET, but all I seemed to be finding was an update.
I am tempted to just install Yosemite and would love to get some input.