If you had higher income, from other sources, would you quickly "take back your sig" and use it for anything you like? How much (in ~USD or BTC value) would you need to make this summer to Stop Using Paid Sig Offers?
If I understood your question correctly then my reply is as below.
Sig campaign is not enough to fulfill your moral needs and it's not like you are an established person in your life by the earnings.
If I can create higher income from other sources (which I'm working on currently) then I will quit sig campaigns because of one reason.
It is because I'll give out my slot to others as an opportunity who are not established yet and need support in the form of sig campaign earnings.
Lets say there are 10 campaigns with 200 slots in total and I'm taking one slot as an established person then, in my opinion, I'm doing injustice with others who are not established.