I think there is a good chance that the bitcoin has a good future and due to that if you have the one bitcoin you also can make some good profit with it later.
Don't depend on signature campaigns because they are going to be permanent. But there are some campaigns that are earning already good profit because of their effective advertising here in forum so they are able to support their campaign for almost a year and keeps on running. And once you earned with campaigns, then you can invest it with trading to boost your earning.
You can trade or invest it in something like a bitcoin casino, it can be very profitable and is a lot better than campaigns.
Well this is a nice idea. maybe i'll start investing in some casino if i have spare BTC. I do agree that signature campaign is not forever so better make the best out of it. I think trading is a good way to go but it is really risky this days, mostly the coin just pops in are scam coin where dev is only active in a few weeks then runs when they have dumped their coins in the unsuspecting buyer.