I obviously don't know what your users were thinking, or even what your application does, but for my part I use open source stuff because that means I know if I

I obviously don't know what your users were thinking, or even what your application does, but for my part I use open source stuff because that means I know if I become dependent on it, and the original author drops it (or goes in a direction I don't like) I have options. The price is pretty much orthogonal. Just saying it's not necessarily just about entitlement and getting stuff for free.