Well even if signature campaigns give us less earnings, it is still steady. And i agree that keeping a lot of bitcoins can't be considered as steady income because the price is fluctuating and we won't be getting enough here on a consistent basis.
Campaigns can be a help but it is much better if we still have knowledge on investing and trading, as well trying it on and learn how to get successful on it.
Yes you are right signature campaign can be a very helpful for us and we can make money very easy but its income is low of amount. and you are right if we make more money we need to have a better knowledge of about trading and investment.