If you have to ask if operating a POS will be worth it for you, the answer is no.

Wow. So much frustration. I do agree with James, these are vague middle-management non-questions that indicate not a single shred of information about the subject has entered OP's skull yet. The information OP is looking for can be found here, on the first hit you get when you query google for "eve online pos". While James is short but concise, and I am actually friendly enough to do the query itself, your own behaviour is more indicative of the human condition then his.

Edit: your avatars eyes are too far apart, you might reconsider breeding

and then attempt to take the moral high ground with that character