I see a lot of people want window snapping, and I avoid switching because of this also. However, after switching, window snapping frustrates me. Occasionally I need it, so I use a tool for it, and I take advantage of it about once a month.
Maybe if windows offered gestures and was POSIX compliant I wouldn't mind switching. Then I would want a laptop that is about as thin/light as a retina with an equivalent display and trackpad plus a MagSafe style adaptor. Then I would want a proper package manager and a time machine style backup solution.
Then I could try to find a way to integrate iOS services into my workflow properly, but I still won't have iMessage, which is a bummer. I would consider that a point against apple if I didn't like iMessage/FaceTime so much. I guess that could be factored into switching cost. I just don't care to leave iOS at this point.
I will agree that finder is really unnecessarily frustrating and that there are a few drawbacks to OS X. Especially with a couple random bugs lately. However, the experience, for me, has been overwhelmingly net positive, and there are just so many things I would miss by switching right now that I don't see it happening.